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Acronym and initialism

 

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Acronym and initialism



 
 
Acronyms, initialisms, and alphabetisms are abbreviation
Abbreviation

An abbreviation is a shortened form of a word or phrase. Usually, but not always, it consists of a letter or group of letters taken from the word or phrase....
s that are formed using the initial components in a phrase or name. These components may be individual letters (as in CEO) or parts of words (as in Benelux
Benelux

The Benelux is an union in Western Europe that comprises three neighboring countries, Belgium, the Netherlands, and Luxembourg , which lie in the north western European region between France and Germany....
 or Delmarva). There is no universal agreement on the precise definition of the various terms (see Nomenclature), nor on written usage (see Orthographic styling).






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Acronyms, initialisms, and alphabetisms are abbreviation
Abbreviation

An abbreviation is a shortened form of a word or phrase. Usually, but not always, it consists of a letter or group of letters taken from the word or phrase....
s that are formed using the initial components in a phrase or name. These components may be individual letters (as in CEO) or parts of words (as in Benelux
Benelux

The Benelux is an union in Western Europe that comprises three neighboring countries, Belgium, the Netherlands, and Luxembourg , which lie in the north western European region between France and Germany....
 or Delmarva). There is no universal agreement on the precise definition of the various terms (see Nomenclature), nor on written usage (see Orthographic styling). While popular in recent English, such abbreviations have historical use in English, as well as other languages. As a type of word formation
Word formation

In linguistics, word formation is the creation of a new word. Word formation is sometimes contrasted with semantic change, which is a change in a single word's meaning....
 process, acronyms and initialisms are viewed as a subtype of blend
Blend

In linguistics, a blend is a word formed from parts of two other words. These parts are sometimes, but not always, morphemes.Linguistics...
ing.

Nomenclature


While the word abbreviation
Abbreviation

An abbreviation is a shortened form of a word or phrase. Usually, but not always, it consists of a letter or group of letters taken from the word or phrase....
 refers to any shortened form of a word or a phrase, some have used initialism or alphabetism to refer to an abbreviation formed simply from a string of initials. In 1943, Bell Laboratories coined the term acronym as the name for a word (such as SONAR) created from the first letters of each word in a series of words (such as SOund Navigation And Ranging). The terms initialism and alphabetism are neither widely used nor widely known. The term acronym is widely used to describe any abbreviation formed from initial letters. "Users of the term acronym make no distinction between those which are pronounced as words ... and those which are pronounced as a series of characters" —Jean Praninskas, Trade Name Creation, 1968.
"It is not J.C.B.'s fault that its name, let alone its acronym, is not a household word among European scholars" —Times Literary Supp. 5 February 1970.
"... the confusion in the Pentagon about abbreviations and acronyms—words formed from the first letters of other words" —Bernard Weinraub., N.Y. Times, 11 December 1978.
"An acronym is a pronounceable word..." —"Pyles & Algeo 1970 divide acronyms into "initialisms," which consists of initial letters pronounced with the letter names, and "word acronyms," which are pronounced as words. Initialism, an older word than acronym, seems to be too little known to the general public to serve as the customary term standing in contrast with acronym in a narrow sense.

Most dictionaries define acronym to mean "a word" in its original sense,"acronym" , accessed Nov 3, 2008: "acronym (a word formed from the initial letters of the several words in the name)""acronym" , accessed Oct 7, 2008: Acronym "A word formed from the initial letters of a multi-word name." while some include a secondary indication of usage, attributing to acronym the same meaning as that of initialism. According to the primary definition found in most dictionaries, examples of acronyms would include NATO
NATO

The North Atlantic Treaty Organization , also called the Atlantic Alliance, is a military alliance established by the signing of the North Atlantic Treaty on 4 April 1949....
 , scuba
Scuba

Scuba is an acronym for self contained underwater breathing apparatus. It may also refer to:* Scuba diving, the use of a self-contained breathing set to stay underwater for periods of time...
 (self-contained underwater breathing apparatus), and radar
Radar

Radar is a system that uses electromagnetic radiation waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain....
 (radio detection and ranging), while examples of simple abbreviations (initialisms) would include FBI and HTML
HTML

HTML, an Acronym and initialism of HyperText Markup Language, is the predominant markup language for Web pages. It provides a means to describe the structure of text-based information in a document?by denoting certain text as links, headings, paragraphs, lists, and so on?and to supplement that text with interactive forms, embedded '...
 .

There is no agreement on what to call abbreviations whose pronunciation involves the combination of letter names and words, such as JPEG
JPEG

In computing, JPEG is a commonly used method of for photographic images. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality....
  and MS-DOS
MS-DOS

MS-DOS is an operating system commercialized by Microsoft. It was the most commonly used member of the DOS family of operating systems and was the main operating system for personal computers during the 1980s....
 .

There is also some disagreement as to what to call abbreviations that some speakers pronounce as letters and others pronounce as a word. For example, the terms URL
Uniform Resource Locator

In Information technology, a Uniform Resource Locator is a type of Uniform Resource Identifier that specifies where an identified resource is available and the mechanism for retrieving it....
 and IRA
Individual Retirement Account

An Individual Retirement Arrangement is a retirement plan account that provides some tax advantages for retirement savings in the United States....
 can be pronounced as individual letters: and respectively; or as a single word: and respectively. Such constructions, however—regardless of how they are pronounced—if formed from initials, may be identified as initialisms without controversy.

The term for the word-by-word reconstruction of an acronym or initialism is an expansion.

Comparing a few examples of each type


  • Pronounced as a word, containing only initial letters
    • laser
      Laser

      A laser is a device that emits light through a process called stimulated emission. The term laser is an acronym for light amplification by stimulated emission of radiation....
      : light amplification by the stimulated emission of radiation
    • NATO
      NATO

      The North Atlantic Treaty Organization , also called the Atlantic Alliance, is a military alliance established by the signing of the North Atlantic Treaty on 4 April 1949....
      : North Atlantic Treaty Organization
    • scuba
      Scuba

      Scuba is an acronym for self contained underwater breathing apparatus. It may also refer to:* Scuba diving, the use of a self-contained breathing set to stay underwater for periods of time...
      : self-contained underwater breathing apparatus
    • EPCOT
      Epcot

      Epcot is a theme park at the Walt Disney World Resort. The park is dedicated to international culture and technological innovation. The second park built at the resort, it opened on October 1, 1982 and was named EPCOT Center until 1994....
      : Experimental Prototype Community of Tomorrow
  • Pronounced as a word, containing non-initial letters
    • Amphetamine
      Amphetamine

      Amphetamine and related drugs such as methamphetamine are a group of drugs that act by increasing levels of norepinephrine, serotonin, and dopamine in the brain....
      : Alpha-methyl-phenethylamine
    • Gestapo
      Gestapo

      The was the official secret police of Nazi Germany. Under the overall administration of the Schutzstaffel , it was administered by the Reichssicherheitshauptamt and was considered a dual organization of the Sicherheitsdienst and also a suboffice of the Sicherheitspolizei ....
      : Geheime Staatspolizei ("secret state police")
    • Interpol
      Interpol

      The International Criminal Police Organization, better known by its Electrical telegraph Interpol, is an organization facilitating international police cooperation....
      : International Criminal Police Organization
    • radar
      Radar

      Radar is a system that uses electromagnetic radiation waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain....
      : radio detection and ranging
  • Pronounced as a word or names of letters, depending on speaker or context
    • FAQ
      FAQ

      Frequently Asked Questions, or FAQs are listed questions and answers, all supposed to be frequently asked in some context, and pertaining to a particular topic....
      : ( or F A Q) frequently asked questions
    • IRA
      Ira

      IRA and similar may mean:...
      :
      • When used for Irish Republican Army
        Irish Republican Army

        The Irish Republican Army was an Irish republican revolutionary military organisation descended from the Irish Volunteers, established 25 November 1913 and who in April 1916 staged the Easter Rising....
        , pronounced as letters in English (I R A) but as a word in Spanish
      • When used for Individual Retirement Account
        Individual Retirement Account

        An Individual Retirement Arrangement is a retirement plan account that provides some tax advantages for retirement savings in the United States....
        , can be pronounced as letters (I R A) or as a word
    • SAT
      SAT

      The SAT Reasoning Test is a standardized testing for college admissions in the Education in the United States. The SAT is owned, published, and developed by the College Board, a non-profit organization in the United States, and was once developed, published, and scored by the Educational Testing Service ....
      : ( or S A T) (previously) Scholastic Achievement (or Aptitude) Test(s), now claimed not to stand for anything.
    • SQL
      SQL

      SQL is a database computer language designed for the retrieval and management of data in relational database management systems , database schema creation and modification, and database object access control management....
      : ( or S Q L) Structured Query Language.
  • Pronounced as a combination of names of letters and a word
    • CD-ROM
      CD-ROM

      CD-ROM is a pre-pressed Compact Disc that contains Computer data storage accessible to, but not writable by, a computer. While the Compact Disc format was originally designed for music storage and playback, the 1985 Yellow Book standard developed by Sony and Philips adapted the format to hold any form of Binary file....
      : (C-D-) Compact Disc read-only memory
    • IUPAC: (I-U-) International Union of Pure and Applied Chemistry
    • JPEG
      JPEG

      In computing, JPEG is a commonly used method of for photographic images. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality....
      : (J-) Joint Photographic Experts Group
    • SFMOMA
      San Francisco Museum of Modern Art

      The San Francisco Museum of Modern Art is a major modern art museum and San Francisco, California landmark.It opened in 1935 under founding director Dr....
      : (S-F-) San Francisco Museum of Modern Art
  • Pronounced only as the names of letters
    • BBC: British Broadcasting Corporation
    • CNN
      CNN

      Cable News Network, almost always referred to by its initialism CNN, is a major US Cable News Network founded in 1980 by Ted Turner. Upon its launch, CNN was the first station to provide 24-hour television news coverage, and the first all-news television network in the United States....
      : Cable News Network
    • DNA
      DNA

      Deoxyribonucleic acid is a nucleic acid that contains the genetics instructions used in the development and functioning of all known living organisms and some viruses....
      : deoxyribonucleic acid
    • USA: United States of America
  • Pronounced as the names of letters but with a shortcut
    • AAA
      AAA

      AAA, or Triple-A, may be a three-letter acronym or may just mean something that is high-quality, premier, or excellent. As an English language proper noun, Aaa is found only in the name Aaa Water Treader and in its scientific name Cavaticovelia aaa, a true bug found in Hawaiian Islands caves....
      :
      • (triple A) American Automobile Association
        American Automobile Association

        The AAA , formerly known as the American Automobile Association, is a 50 million member North American Non-profit organization automobile Lobbying in the United States, Service , and seller of vehicle insurance....
      • (triple A) abdominal aortic aneurysm
        Abdominal aortic aneurysm

        Abdominal aortic aneurysm, also written as AAA and often pronounced 'triple-A', is a localized dilatation of the abdominal aorta, that exceeds the normal diameter by more than 50%....
      • (three As) Amateur Athletic Association
        Amateur Athletic Association

        The Amateur Athletic Association of England or AAA is the oldest national governing body for athletics in the world, having been established on 24 April 1880....
    • IEEE
      Institute of Electrical and Electronics Engineers

      The Institute of Electrical and Electronics Engineers or IEEE is an international non-profit, professional body for the advancement of technology related to electricity....
      : (I triple E) Institute of Electrical and Electronics Engineers
    • NAACP
      National Association for the Advancement of Colored People

      The National Association for the Advancement of Colored People, usually abbreviated as NAACP and pronounced N-double-A-C-P, is one of the oldest and most influential civil rights organizations in the United States....
      : (N double A C P) National Association for the Advancement of Colored People
    • NCAA
      National Collegiate Athletic Association

      The National Collegiate Athletic Association is a voluntary association of about 1,281 institutions, conferences, organizations and individuals that organizes the athletic programs of many colleges and University in the United States ....
      : (N C double A or N C two A or ) National Collegiate Athletic Association
  • Shortcut incorporated into name
    • 3M
      3M

      3M Company , formerly Minnesota Mining and Manufacturing Company until 2002, is an United States multinational corporation Conglomerate corporation with a worldwide presence....
      : (three M) originally Minnesota Mining and Manufacturing Company
    • E³: (E three) Electronic Entertainment Exposition
    • W3C: (W three C) World Wide Web Consortium
  • Multi-layered acronyms
    • FRC
      FRC

      The three-letter acronym FRC can have several different meanings:* Frame Redundancy Check *False Roman Cancel, a technique used in the fighting game series Guilty Gear...
      : FIRST
      FIRST

      FIRST, or For Inspiration and Recognition of Science and Technology, is an organization founded by inventor Dean Kamen in 1989 in order to develop ways to inspire students in engineering and technology fields....
       Robotics Competition, i.e., For Inspiration and Recognition of Science and Technology Robotics Competition
    • GAIM: GTK+
      GTK+

      GTK+, or The GIMP Toolkit, is a cross-platform widget toolkit for creating graphical user interfaces. It is one of the most popular toolkits for the X Window System, along with Qt ....
       AOL
      AOL

      AOL LLC is an United States global Internet services and media company operated by Time Warner and was headquartered in Loudoun County, Virginia until late April 2008 when it was moved to new offices at 770 Broadway in New York City....
       Instant Messenger, i.e. GIMP Tool Kit America OnLine Instant Messenger, i.e. GNU I
      I

      I is the ninth Letter of the Latin alphabet. Its English language name is i ....
      mage Manipulation Program Tool Kit America OnLine Instant Messenger, i.e. GNU's Not Unix Image Manipulation Program Tool Kit America OnLine Instant Messenger
    • GTK+
      GTK+

      GTK+, or The GIMP Toolkit, is a cross-platform widget toolkit for creating graphical user interfaces. It is one of the most popular toolkits for the X Window System, along with Qt ....
      : GIMP
      GIMP

      The GIMP is a free software, raster graphics editor used to process digital graphics and photographs. Typical uses include creating graphics and logos, resizing and cropping photos, altering colors, combining multiple images, removing unwanted image components, and converting between different image formats....
       Tool Kit, i.e. GNU
      GNU

      GNU is a computer operating system composed entirely of free software. Its name is a recursive acronym for GNU's Not Unix; it was chosen because its design is Unix-like, but differs from Unix by being free software and containing no Unix code....
       Image Manipulation Program Tool Kit, i.e. GNU's Not Unix Image Manipulation Program Tool Kit
    • PAC-3: PATRIOT Advanced Capability 3 i.e., Phased Array Tracking RADAR Intercept on Target i.e., RAdio Detection And Ranging
  • Recursive acronyms, in which the abbreviation itself is the expansion of one initial
    • GNU
      GNU

      GNU is a computer operating system composed entirely of free software. Its name is a recursive acronym for GNU's Not Unix; it was chosen because its design is Unix-like, but differs from Unix by being free software and containing no Unix code....
      : GNU's Not Unix!
    • HURD
      GNU Hurd

      GNU Hurd is a free software computer kernel , released under the GNU General Public License. It consists of a set of Server that work on top of a microkernel; together they form the kernel of GNU....
      : HIRD of Unix-Replacing Daemons, where "HIRD" stands for "HURD of Interfaces Representing Depth"
    • PHP
      PHP

      PHP is a scripting language originally designed for producing dynamic web pages. It has evolved to include a command line interface capability and can be used in Standalone software Graphical user interface....
      : PHP Hypertext Preprocessor
    • XNA
      Microsoft XNA

      Microsoft XNA is a set of tools with a managed runtime environment provided by Microsoft that facilitates Video game game development and management....
      : XNA's Not Acronymed - a game development framework from Microsoft
      Microsoft

      Microsoft Corporation is a multinational corporation computer technology corporation that develops, manufactures, licenses, and supports a wide range of computer software products for computing devices....


  • Initialisms whose last word is a noun, but which are sometimes used as adjectives and the final noun stated separately (almost always redundantly; see RAS syndrome
    RAS syndrome

    RAS syndrome stands for Redundant Acronym Syndrome syndrome and refers to the redundant use of one or more of the words that make up an acronym or initialism with the abbreviation itself, thus in effect repeating one or more words....
    )
    • ABS
      Anti-lock braking system

      An anti-lock braking system, or ABS is a safety system which prevents the wheels on a motor vehicle from locking while brake.A rotating road wheel allows the driver to maintain steering control under heavy braking by preventing a skid and allowing the wheel to continue interacting Traction with the road surface as directed by driver...
       system (ABS from the German
      German language

      German is a West Germanic languages, thus related to and classified alongside English language and Dutch language. It is one of the world's world language and the most widely spoken mother tongue in the European Union....
       Antiblockiersystem): Anti-lock braking system system
    • ATM
      Automated teller machine

      An automated teller machine is a computerized telecommunications device that provides the customers of a financial institution with access to financial transactions in a public space without the need for a human clerk or bank teller....
       machine:
      Automated Teller Machine machine
    • UPC
      Universal Product Code

      The Universal Product Code is a barcode#Symbologies , that is widely used in the United States and Canada for tracking trade items in stores....
       code:
      Universal Product Code code
    • PIN
      Personal identification number

      A personal identification number is a secret numeric password shared between a user and a system that can be used to authenticate the user to the system....
       number:
      Personal Identification Number number


Historical and current use


In the English language, the widespread use of acronyms and initialisms is a relatively new linguistic
Linguistics

Linguistics is the science study of natural language. Linguistics encompasses a number of sub-fields. An important topical division is between the study of language structure and the study of Meaning ....
 phenomenon, becoming increasingly evident since the mid-20th century. As literacy rates rose, and as advances in science and technology brought with them more complicated terms and concepts, the practice of abbreviating terms became increasingly convenient. The
Oxford English Dictionary
Oxford English Dictionary

The Oxford English Dictionary , published by the Oxford University Press , is a comprehensive dictionary of the English language. Two fully-bound print editions of the OED have been published under its current name, in 1928 and 1989; as of December 2008 the dictionary's current editors have completed a quarter of the third edition....
(OED) records the first printed use of the word initialism as occurring in 1899, but it did not come into general use until 1965, well after acronym had become common.

Around 1943, the term
acronym was coined to recognize abbreviations and contractions of phrases pronounced as words. For example, the army offense of being Absent Without Official Leave was abbreviated to "A.W.O.L." in reports, but when pronounced 'awol' became an acronym. While initial letters are commonly used to form an acronym, the original definition was a word made from the initial letters or syllables of other words, for example UNIVAC
UNIVAC I

The UNIVAC I was the first commercial computer produced in the United States.It was designed principally by J. Presper Eckert and John Mauchly, the inventors of the ENIAC....
 from UNIVersal Automatic Computer. An early commercial example was Nabisco
Nabisco

Nabisco is a brand of cookies and snacks, including brands such as Chips Ahoy!, Fig Newtons, Mallomars, Oreos, Premium Crackers, Ritz Crackers, Teddy Grahams, Triscuits, Wheat Thins, Social Tea, Nutter Butter, Peek Freans, Lorna Doone, Famous Chocolate Wafers and Chicken in a Biskit, used for the United States, United Kingdom, Venezuela and...
 for the National Biscuit Company. The word
acronym itself comes from Greek
Greek language

Greek is an Indo-European languages native to the southern Balkan peninsula, the language of the Greek people. It forms an independent branch within Indo-European....
: ?????, akros, "topmost, extreme" + ???µa, onoma, "name."

Despite the recent emergence in English, earlier examples of acronyms in other languages exist. The early Christians
Christianity

Christianity is a Monotheistic religion #Christian view religion centered on the life and teachings of Jesus as New Testament view on Jesus' life....
 in Rome
Rome

Rome is the capital city of Italy and Lazio, and is Italy's largest and most populous city, with 2,724,347 residents in an urban area of some ....
 used the image of a fish
Fish

A fish is any marine biology vertebrate animal that is typically ectothermic , covered with scale , and equipped with two sets of paired fins and several unpaired fins....
 as a symbol for Jesus
Jesus

Jesus of Nazareth , also known as Jesus Christ, is the central figure of Christianity and is revered by most Christian churches as the Son of God and the Incarnation ....
 in part because of an acronym—
fish in Greek is ??T?S (ichthys
Ichthys

Ichthys or Ichthus is the ancient and classical Greek word for "fish." In English it refers to a symbol consisting of two intersecting arcs, the ends of the right side extending beyond the meeting point so as to resemble the profile of a fish, said to have been used by early Christianitys as a secret symbol and now known colloquiall...
), which was said to stand for (Iesous CHristos THeou (h) Uios Soter: Jesus Christ, Son of God, Savior). Evidence of this interpretation dates from the 2nd and 3rd centuries and is preserved in the catacombs
Catacombs

Catacombs are ancient, human-made underground passageways or subterranean cemeteries composed thereof. Many are under cities and have served during historic times as a refuge for safety during wars or as a meeting place for cults....
 of Rome. And for centuries, the Church has used the inscription
INRI
INRI

INRI is an acronym of the Latin language inscription IESVS?NAZARENVS?REX?IVD?ORVM , which translates to English language as "Jesus Nazarene, King of the Jews." The Greek equivalent of this phrase appears in the New Testament of the Christian Bible in the Gospel of John ....
over the crucifix, which stands for the Latin Iesus Nazarenus Rex Iudaeorum ("Jesus the Nazarene, King of the Jews").

Initialisms were used in Rome dating back even earlier than the Christian era. For example, the official name for the Roman Empire, and the Republic before it, was abbreviated as
SPQR
SPQR

SPQR is an Acronym and initialism from a Latin phrase, Senatus Populusque Romanus , referring to the government of the ancient Roman Republic, and used as an official signature of the government....
(Senatus Populusque Romanus).

Acronyms pronounced as words may be a 20th century phenomenon. Linguist David Wilton in
Word Myths: Debunking Linguistic Urban Legends claims that "forming words from acronyms is a distinctly twentieth- (and now twenty-first-) century phenomenon. There is only one known pre-twentieth-century word with an acronymic origin and it was in vogue for only a short time in 1886. The word is colinderies or colinda, an acronym for the Colonial and Indian Exposition held in London in that year." However this claim is practically impossible to prove: a seventeenth century counter-example may be Cabal
Cabal

A cabal is a number of people united in some close design, usually to promote their private views and interests in a Church body, state, or other community, often by Wiktionary:intrigue....
, an acronym for the Cabal Ministry
Cabal Ministry

The Cabal was a group of high councillors who held power in England from 1668 to approximately 1674....
 of Charles II, named after the initials of five prominent ministers.

Early examples in English


  • A.M.
    12-hour clock

    The 12-hour clock is a time conversion convention in which the 24 hours of the day are divided into two periods called ante meridiem and post meridiem ....
    (Latin ante meridiem, "before noon") and P.M.
    12-hour clock

    The 12-hour clock is a time conversion convention in which the 24 hours of the day are divided into two periods called ante meridiem and post meridiem ....
    (Latin post meridiem, "after noon")
  • O.K.
    Okay

    Okay, frequently spelled OK and occasionally okeh is a colloquial English language word denoting approval, assent, or acknowledgment....
    , a term of disputed origin, dating back at least to the early 19th century, now used around the world
  • n.g., for "no good," from 1838, nowadays commonly expanded to "nbg" (no bloody good)
  • B.C. stands for Before Christ, and A.D. for Anno Domini
    Anno Domini

    , abbreviated as 'AD' or 'A.D.', and 'Before Christ', abbreviated as 'BC' or 'B.C.', are designations used to number years in the Julian calendar and Gregorian calendars....
    , Latin for "In the year of our Lord"
  • The etymology
    Etymology

    Etymology is the study of the roots and history of words; and how their form and meaning have changed over time.In languages with a long detailed history, etymology makes use of philology, the study of how words change from culture to culture over time....
     of the word
    alphabet itself comes to Middle English
    Middle English

    Middle English is the name given by historical linguistics to the diverse forms of the English language spoken between the Norman conquest of England of 1066 and about 1470, when the #Chancery Standard, a form of London-based English, began to become widespread, a process aided by the introduction of the printing press into England by William...
     from the Late Latin
    Alphabetum, which in turn derives from the Ancient Greek
    Ancient Greek

    Ancient Greek is the historical stage in the development of the Greek language spanning across the Archaic Greece , Classical Greece , and Hellenistic civilization periods of ancient Greece and the classical antiquity....
     
    Alphabetos, from alpha
    Alpha (letter)

    Alpha is the first letter of the Greek alphabet. In the system of Greek numerals it has a value of 1. It was derived from the Phoenician alphabet Aleph ....
    and beta
    Beta (letter)

    Beta is the second letter of the Greek alphabet. In the system of Greek numerals it has a value of 2. It was derived from the Phoenician alphabet Beth ....
    , the first two letters of the Greek alphabet
    Greek alphabet

    The Greek alphabet is a set of twenty-four letters that has been used to write the Greek language since the late 9th century BC or early 8th century BCE....
    . Colloquially, learning the alphabet is called learning one's
    ABCs.


Current use


Acronyms and initialisms are used most often to abbreviate names of organizations and long or frequently referenced terms. The armed forces
Military

A military is an organization authorized by its nation to use force, usually including use of weapons, in defending its country by combating actual or Threat of force ....
 and government agencies frequently employ initialisms (and occasionally, acronyms) (a well known English-language example being the "alphabet agencies
Alphabet agencies

In 1933 President Franklin D. Roosevelt launched his New Deal to deal with the Great Depression in the United States. The administrative style was to create new agencies....
" created by Franklin D. Roosevelt
Franklin D. Roosevelt

Franklin Delano Roosevelt , often referred to by his initials FDR, was the List of Presidents of the United States President of the United States....
 under the New Deal
New Deal

The New Deal was the name that United States President of the United States Franklin D. Roosevelt gave to a sequence of central economic planning and economic stimulus programs he initiated between 1933 and 1938 with the goal of giving aid to the unemployed, reform of business and financial practices, and recovery of the Economy of the Unite...
). Business and industry also are prolific coiners of acronyms and initialisms. The rapid advance of science and technology in recent centuries seems to be an underlying force driving the usage, as new inventions and concepts with multiword names create a demand for shorter, more manageable names. One representative example, from the U.S. Navy, is COMCRUDESPAC, which stands for Commander, Cruisers Destroyers Pacific; it's also seen as "ComCruDesPac". "YABA-compatible" (where YABA stands for "Yet Another Bloody Acronym") is used to mean that a term's acronym can be pronounced but is not an offensive word. (e.g., "When choosing a new name, be sure it is "YABA-compatible.")

Jargon

Acronyms and initialisms often occur in jargon
Jargon

Jargon is terminology which has been especially defined in relationship to a specific activity, profession, or group. In other words, the term covers the language used by people who work in a particular area or who have a common interest....
. An initialism may have different meanings in different areas of industry, writing, and scholarship. The general reason for this is convenience and succinctness for specialists, although it has led some to obfuscate the meaning either intentionally, to deter those without such domain-specific knowledge, or unintentionally, by creating an initialism that already existed.

The medical literature has been struggling to control the proliferation of acronyms as their use has evolved from aiding communication to hindering it. This has become such a problem that it is even evaluated at the level of medical academies such as the American Academy of Dermatology.

Acronyms as legendary etymology

It is not uncommon for acronyms to be cited in a kind of false etymology
False etymology

A false etymology is an assumed or postulated etymology that current consensus among scholars of historical linguistics holds to be incorrect. Many false etymologies may also be described as folk etymologies, the distinction being that folk etymologies are widely believed to be true, and of anonymous origin....
 called a folk etymology for a word. Such etymologies persist in popular culture but have no scholarly basis in historical linguistics
Historical linguistics

Historical linguistics is the study of language change. It has five main concerns:* to describe and account for observed changes in particular languages;...
, and are examples of language-related urban legend
Urban legend

An urban legend, urban myth, or urban tale is a form of modern folklore consisting of stories thought to be factual by those circulating them....
s. For example,
cop is commonly cited as being supposedly derived from "constable on patrol," posh from "port out, starboard home
Port Out, Starboard Home

Port Out, Starboard Home is a phrase popularly believed to provide the etymology for the word wikt:posh. According to this belief, "Port Out" and "Starboard Home" were the most desirable cabin locations on ships traveling to and from British overseas territories in the Far East before the development of air conditioning, because they were s...
", and
golf from "gentlemen only, ladies forbidden". Taboo words in particular commonly have such false etymologies: shit from "ship high in transit" and fuck from "for unlawful carnal knowledge."

Orthographic styling


Punctuation


Showing the ellipsis of letters

Traditionally, in English, abbreviations have been written with a full stop/period/point
Full stop

A full stop or period , is the punctuation mark commonly placed at the end of several different types of Sentence s in English language and many other languages....
 in place of the deleted part to show the ellipsis of letters, although the colon
Colon (punctuation)

The colon is a punctuation mark, consisting of two equally sized dots centered on the same vertical line....
 and apostrophe
Apostrophe

The apostrophe is a punctuation mark, and sometimes a diacritic mark, in languages that use the Latin alphabet or certain other alphabets. In English it has two main functions: it marks omissions, and it assists in marking the possessives of all nouns and many pronouns....
 have also had this role. In the case of most acronyms and initialisms, each letter is an abbreviation of a separate word and, in theory, should get its own termination mark. Such punctuation is diminishing with the belief that the presence of all-capital letters is sufficient to indicate that the word is an abbreviation.

Ellipsis-is-understood style

Some influential style guide
Style guide

A style guide or style manual is a set of standards for design and writing of documents, either for general use or for a specific publication or organization....
s, such as that of the BBC, no longer require punctuation to show ellipsis; some even proscribe it. Larry Trask, American author of
The Penguin
Penguin Books

Penguin Books is a United Kingdom publisher founded in 1935 by Allen Lane. Lane's idea was to provide quality writing cheaply, for the same price as a pack of cigarettes....
 Guide to Punctuation, states categorically that, in British English
British English

British English or UK English is the broad term used to distinguish the forms of the English language used in the United Kingdom from forms used elsewhere....
, "this tiresome and unnecessary practice is now obsolete", though some other sources are not so absolute in their pronouncements.

Pronunciation-dependent style

Nevertheless, some influential style guide
Style guide

A style guide or style manual is a set of standards for design and writing of documents, either for general use or for a specific publication or organization....
s, many of them American
American English

PhonologyIn many ways, compared to English language in England, North American English is conservative in its phonology. Some distinctive accents can be found on the East Coast of the United States , partly because these areas were in contact with England, and imitated prestigious varieties of English English at a time when those varieties we...
, still require periods in certain instances. For example,
The New York Times
The New York Times

The New York Times is an American daily newspaper published in New York City. The largest metropolitan newspaper in the United States, "The Gray Lady"?named for its staid appearance and style?is regarded as a national newspaper of record....
’ guide recommends following each segment with a period when the letters are pronounced individually, as in K.G.B.
KGB

KGB is the Russian language abbreviation of Committee for State Security , which was the official name of the umbrella organization serving as the Soviet Union's premier security agency, secret police, and intelligence agency, from 1954 to 1991....
, but not when pronounced as a word, as in NATO
NATO

The North Atlantic Treaty Organization , also called the Atlantic Alliance, is a military alliance established by the signing of the North Atlantic Treaty on 4 April 1949....
. The logic of this style is that the pronunciation is reflected graphically by the punctuation scheme.

Other conventions

When a multiple-letter abbreviation is formed from a single word, periods are generally proscribed, although they may be common in informal, personal usage.
TV, for example, may stand for a single word (television or transvestite, for instance), and is generally spelled without punctuation (except in the plural). Although PS stands for the single word postscript (or the Latin postscriptum), it is often spelled with periods (P.S.). (Wikiquote
Wikiquote

Wikiquote is one of a family of wiki-based projects run by the Wikimedia Foundation, running on MediaWiki software. Based on an idea by Daniel Alston and implemented by Brion Vibber, the goal of the project is to produce collaboratively a vast reference of quotations from prominent people, books, films and proverbs, and to give details about...
 abbreviates
television as T.V.)

The slash
Slash (punctuation)

The slash is a punctuation mark. It is also called a virgule, diagonal, stroke, forward slash, oblique dash, slant, separatrix, scratch comma, over, slak, whack....
 (a.k.a. virgule) (/) is often used to show the ellipsis of letters in the initialism
N/A (not applicable, not available).

Inconveniently long words used frequently in related contexts can be represented according to their letter count.
i18n, for example, abbreviates internationalization, a computer-science term for adapting software for worldwide use. The 18 represents the 18 letters that come between the first and the last in internationalization. Localization can be abbreviated l10n, multilingualization m17n, and accessibility a11y. In addition to the use of a specific number replacing that amount of letters, the more general "x" can be used to replace an unspecified number of letters (e.g. Crxn for Crystallization).

Representing plurals and possessives

The traditional style of pluralizing single letters with the addition of
’s (for example, B
s come after As) was extended to some of the earliest initialisms, which tended to be written with periods to indicate the omission of letters; some writers still pluralize initialisms in this way. Some style guides continue to require such apostrophes—perhaps partly to make it clear that the lower case s is only for pluralization and would not appear in the singular form of the word, for some acronyms and abbreviations do include lowercase letters.

However, it has become common among many writers to inflect
Inflection

In grammar, inflection or inflexion is the way language handles grammatical relations and relational categories such as grammatical tense, grammatical mood, grammatical voice, grammatical aspect, grammatical person, grammatical number, grammatical gender, grammatical case....
 initialisms as ordinary words, using simple
s, without an apostrophe, for the plural. In this case, compact discs becomes CDs. The logic here is that the apostrophe should be restricted to possessives: for example, the
CD’s label (the label of the compact disc).

Multiple options arise when initialisms are spelled with periods and are pluralized: for example,
compact discs may become C.D.’s, C.D.s, CD’s, or CDs. Possessive plurals that also include apostrophes for mere pluralization and periods may appear especially complex: for example, the
C.D.’s’ labels (the labels of the compact discs). Some see this as yet another reason to use apostrophes only for possessives and not for plurals. In some instances, however, an apostrophe may increase clarity: for example, if the final letter of an abbreviation is S, as in SOS’s, or when pluralizing an abbreviation that has periods. (In The New York Times, the plural possessive of G.I., which the newspaper prints with periods in reference to United States Army
United States Army

The United States Army is the branch of the United States Armed Forces responsible for Army operations. It is the largest and oldest established branch of the U.S....
 soldiers, is
G.I.’s, with no apostrophe after the s.)

A particularly rich source of options arises when the plural of an initialism would normally be indicated in a word other than the final word if spelled out in full. A classic example is
Member of Parliament, which in plural is Members of Parliament. It is possible then to abbreviate this as M’s P. (or similar), as famously by a former Australian Prime Minister. This usage is less common than forms with s at the end, such as MPs, and may appear dated or pedantic.

The argument that initialisms should have no different plural form (for example, "If
D can stand for disc, it can also stand for disc
s
") is generally disregarded because of the practicality in distinguishing singulars and plurals. This is not the case, however, when the abbreviation is understood to describe a plural noun already: for example, U.S. is short for United States, but not United State. In this case, the options for making a possessive form of an abbreviation that is already in its plural form without a final s may seem awkward: for example, U.S.’, U.S’, U.S.’s, etc. In such instances, possessive abbreviations are often foregone in favor of simple attributive
Adjective

In grammar, an adjective is a word whose main syntax role is to grammatical modifier a noun or pronoun, giving more information about the noun or pronoun's definition....
 usage (for example,
the
U.S. economy) or expanding the abbreviation to its full form and then making the possessive (for example, the United States’ economy). On the other hand, in speech, the pronunciation United States’s sometimes is used.

Abbreviations that come from single, rather than multiple, words—such as
TV (television)—are pluralized both with and without apostrophes, depending on the logic followed: that the apostrophe shows the omission of letters and makes the s clear as only a pluralizer (TV
’s
); or that the apostrophe should be reserved for the possessive (TVs).

In some languages, the convention of doubling the letters in the initialism is used to indicate plural words: for example, the Spanish
Spanish language

Spanish or Castilian is a Romance languages that originated in northern Spain, and gradually spread in the Kingdom of Castile and evolved into the principal language of government and trade....
 
EE.UU., for Estados Unidos (United States). This old convention is still followed for a limited number of English abbreviations, such as pp
PP

PP, pp, Pp, or Pp may refer to:...
. for pages (although this is actually derived from the Latin abbreviation for paginae) or MSS for manuscripts.

Acronyms that are now always rendered in the lower case are pluralized as regular English nouns: for example,
lasers.

When an initialism is part of a function in computing that is conventionally written in lower case, it is common to use an apostrophe
Apostrophe

The apostrophe is a punctuation mark, and sometimes a diacritic mark, in languages that use the Latin alphabet or certain other alphabets. In English it has two main functions: it marks omissions, and it assists in marking the possessives of all nouns and many pronouns....
 to pluralize or otherwise conjugate the token. This practice results in such sentences like "Be sure to remove extraneous
.dll
Dynamic-link library

Dynamic-link library , or DLL, is Microsoft's implementation of the shared library concept in the Microsoft Windows and OS/2 operating systems....
’s" (more than one .dll). However despite the pervasiveness of this practice, it is generally held to be technically incorrect; the preferred method being to simply append an s, without the apostrophe.

In computer lingo
Speech community

Speech community is a concept in sociolinguistics that describes a more or less discrete group of people who use language in a unique and mutually accepted way among themselves....
, it is common to use the name of a computer program, format, or function, acronym or not, as a verb. In such verbification of abbreviations, there is confusion about how to conjugate: for example, if the verb
IM (pronounced as separate letters) means to send (someone) an instant message, the past tense may be rendered IM’ed
, IMed, IM’d, or IMd—and the third-person singular present indicative may be IM’s or IMs.

Case


All-caps style

The most common capitalization
Capitalization

Capitalization is writing a word with its first grapheme as a majuscule and the remaining letters in Lower case , in those writing systems which have a letter case....
 scheme seen with acronyms and initialisms is all-uppercase (all-caps
All caps

In typography, all caps refers to text or a typeface in which all letters are capital letters.All caps is usually used for emphasis. It is commonly seen in the titles on book covers, advertising, billboard , and in dramatic newspaper headlines....
), except for those few that have linguistically taken on an identity as regular words, with the acronymous etymology of the words fading into the background of common knowledge, such as has occurred with the words
scuba
Scuba

Scuba is an acronym for self contained underwater breathing apparatus. It may also refer to:* Scuba diving, the use of a self-contained breathing set to stay underwater for periods of time...
, laser
Laser

A laser is a device that emits light through a process called stimulated emission. The term laser is an acronym for light amplification by stimulated emission of radiation....
, and radar
Radar

Radar is a system that uses electromagnetic radiation waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain....
.

Small-caps variant

Small caps
Small caps

In typography, small capitals are uppercase graphemes set at the same height as surrounding lowercase letters or text figures. They are used in running text to prevent capitalized words from appearing too large on the page, and as a method of emphasis or distinctiveness for text alongside or instead of italics, or when boldface is inappr...
 are sometimes used in order to make the run of capital letters seem less jarring to the reader. For example, the style of some American publications, including the
Atlantic Monthly and USA Today
USA Today

'USA TODAY' is a national United States daily newspaper published by the Gannett Company. It was founded by Allen Neuharth. The paper has the widest newspaper circulation of any newspaper in the United States , and among English-language broadsheets, it comes second worldwide, behind only the 2.6 million daily paid copies of The Times of...
, is to use small caps for acronyms and initialisms longer than three letters; thus "U.S." and "FDR
Franklin D. Roosevelt

Franklin Delano Roosevelt , often referred to by his initials FDR, was the List of Presidents of the United States President of the United States....
" in normal caps, but "" in small caps. The initialisms "
Anno Domini

, abbreviated as 'AD' or 'A.D.', and 'Before Christ', abbreviated as 'BC' or 'B.C.', are designations used to number years in the Julian calendar and Gregorian calendars....
" and "" are often smallcapped as well, as in: "From 4004 to 525."

Pronunciation-dependent style

On the copyediting
Copy editing

Copy editing is the work that an editing does to improve the formatting, style, and accuracy of a manuscript. copy refers to written or typewritten text for typesetting, printing, or publication....
 end of the publishing industry, where the aforementioned distinction between acronyms (pronounced as a word) and initialisms (pronounced as a series of letters) is usually maintained, some publishers choose to use cap/lowercase (c/lc) styling for acronyms, reserving all-caps styling for initialisms. Thus
Nato and Aids (c/lc), but USA and FBI (caps). For example, this is the style used in The Guardian
The Guardian

Sorry, no overview for this topic
, and BBC News
BBC News

BBC News, formerly BBC News and Current Affairs, is the department within the BBC responsible for the corporation's news-gathering and production of news programmes on BBC television, radio and online....
 typically edits to this style. The logic of this style is that the pronunciation is reflected graphically by the capitalization scheme.

Some style manuals also base the letters' case
Letter case

In orthography and typography, letter case is the distinction between majuscule and Lower case letters. The term originated with the shallow Drawer s called type cases still used to hold the movable type for letterpress printing....
 on their number.
The New York Times, for example, keeps NATO in all capitals (while several guides in the British press may render it Nato), but uses lower case in Unicef
United Nations Children's Fund

The United Nations Children's Fund was created by the United Nations United Nations General Assembly on 11 December 1946, to provide emergency food and healthcare to children in countries that had been devastated by World War II....
(from "United Nations International Children’s Emergency Fund") because it is more than four letters, and to style it in caps might look ungainly (flirting with the appearance of "shouting capitals").

Numerals and constituent words


While typically abbreviations exclude the initials of short function word
Function word

Function words are words that have little lexical Meaning or have ambiguous meaning, but instead serve to express grammar relationships with other words within a Sentence , or specify the attitude or mood of the speaker....
s (such as "and", "or", "of", or "to"), they are sometimes included in acronyms to make them pronounceable.

Numbers (both cardinal and ordinal) in names are often represented by digit
Numerical digit

In mathematics and computer science, a digit is a symbol used in numerals , to represent numbers, in Positional notation numeral systems. The name "digit" comes from the fact that the 10 digits of the hands correspond to the 10 symbols of the common base 10 number system, i.e....
s rather than initial letters: as in
4GL (Fourth generation language) or G77 (Group of 77
Group of 77

The Group of 77 at the United Nations is a loose coalition of developing nations, designed to promote its members' collective economic interests and create an enhanced joint negotiating capacity in the United Nations....
). Large numbers may use metric prefixes
SI prefix

An SI prefix is a name or associated symbol that precedes a basic unit of measure to form a decimal multiple . The abbreviation SI is from the French language name Syst?me International d?Unit?s ....
, as with
Y2K for "Year 2000" (sometimes written Y2k, because the SI symbol for 1000 is k - not K, which stands for kelvin
Kelvin

The kelvin is a Units of measurement of temperature and is one of the seven SI base units. The Kelvin scale is a Thermodynamic temperature scale where absolute zero, the theoretical absence of all thermal energy, is zero ....
). Exceptions using initials for numbers include TLA (three-letter acronym/abbreviation) and GoF (Gang of Four). Abbreviations using numbers for other purposes include repetitions, such as W3C ("World Wide Web Consortium"); pronunciation, such as B2B ("business to business"); and numeronym
Numeronym

A numeronym is a number-based word.Most commonly a numeronym is a word where the number is used to form an abbreviation .Pronouncing the letters and numbers may sound similar to the full word: "K9" for "...
s, such as
i18n ("internationalization"; 18 represents the 18 letters between the initial i and the final n).

Changes to (or word play on) the expanded meaning


Pseudo-acronyms


In some cases, an acronym or initialism has been redefined as a nonacronymous name, creating a pseudo-acronym
Pseudo-acronym

A pseudo-acronym is an apparent acronym or other abbreviation which doesn't stand for anything, or cannot be officially expanded to some meaning....
. For example, the letters making up the name of the SAT (pronounced as letters) college entrance test no longer officially stand for anything. This trend has been common with many companies hoping to retain their brand
Brand

A brand is a collection of symbols, experiences and associations connected with a product, a service, a person or any other artifact or entity....
 recognition while simultaneously moving away from what they saw as an outdated image: American Telephone and Telegraph became AT&T
AT&T

AT&T Inc. is the largest US provider of both local and long distance telephone services, and Digital subscriber line Internet access. AT&T is the second largest provider of wireless service in the United States, with over 77 million wireless customers, and more than 150 million total customers....
 (its parent/child, SBC, followed suit prior to its acquisition of AT&T and after its acquisition of a number of the other Baby Bells, changing from Southwestern Bell Corporation), Kentucky Fried Chicken became KFC
KFC

KFC, founded and also known as Kentucky Fried Chicken, is a chain of fast food restaurants based in Louisville, Kentucky. KFC was a wholly owned subsidiary of YUM! Brands from 1997?2002, and has been a wholly owned subsidiary of Yum! Brands since 2002....
, British Petroleum
BP

BP plc , is the third largest global energy corporation, a multinational corporation oil company with headquarters in London. The company is among the largest private sector energy corporations in the world, and one of the six "supermajors" ....
 became BP
BP

BP plc , is the third largest global energy corporation, a multinational corporation oil company with headquarters in London. The company is among the largest private sector energy corporations in the world, and one of the six "supermajors" ....
 to emphasize that it was no longer only an oil company (captured by its motto "beyond petroleum"), Silicon Graphics, Incorporated became SGI to emphasize that it was no longer only a computer graphics company. DVD
DVD

DVD, also known as "Digital Versatile Disc" or "Digital Video Disc,"is a popular optical disc data storage device media format. Its main uses are video and data storage....
 now has no official meaning: its advocates couldn't agree on whether the initials stood for "Digital Video Disc" or "Digital Versatile Disc," and now both terms are used.

Pseudo-acronyms may have advantages in international markets: for example, some national affiliate
Affiliate

An affiliate is a commerce entity with a relationship with a peer group or a larger entity....
s of International Business Machines are legally incorporated as "IBM" (or, for example, "IBM Canada") to avoid translating the full name into local languages. Similarly, "UBS
UBS AG

UBS Aktiengesellschaft is a diversified global financial services company, with its main headquarters in Basel and Z?rich, Switzerland. It is the world's largest manager of private wealth assets, "the world's biggest manager of other people's money" and is also the second-largest bank in Europe, by both market capitalisation and profitabil...
" is the name of the merged Union Bank of Switzerland
Union Bank of Switzerland

Union Bank of Switzerland was located in Switzerland. It merged with Swiss Bank Corporation in 1998, to become UBS AG.The company was formed in 1912 when the Bank in Winterthur merged with Toggenburger Bank ....
 and Swiss Bank Corporation
Swiss Bank Corporation

Swiss Bank Corporation is the name of a bank that existed between 1856 and 1998, when it merged with Union Bank of Switzerland to form UBS AG....
.

Recursive acronyms and RAS syndrome


Rebranding can lead to redundant-acronym syndrome syndrome
RAS syndrome

RAS syndrome stands for Redundant Acronym Syndrome syndrome and refers to the redundant use of one or more of the words that make up an acronym or initialism with the abbreviation itself, thus in effect repeating one or more words....
, as when Trustee Savings Bank
Trustee Savings Bank

The Trustee Savings Bank, or TSB as it was commonly known, was a British financial institution which specialised in accepting savings deposits from the poor....
 became TSB Bank, or when Railway Express Agency
Railway Express Agency

The Railway Express Agency was a rail express service, and at one time, the only one in the United States. Originally the American Railway Express Company, its name was changed in 1929....
 became REA Express. A few high-tech companies have taken the redundant acronym to the extreme: for example, ISM Information Systems Management Corp. and SHL Systemhouse Ltd. Another common example is
RAM
Ram

Ram, ram, or RAM as a non-acronymic wordAs a non-acronymic word Ram, ram, or RAM may refer to:...
 memory, which is redundant because RAM (random-access memory) includes the initial of the word memory. PIN stands for personal identification number, obviating the second word in PIN number. Other examples include ATM
Automated teller machine

An automated teller machine is a computerized telecommunications device that provides the customers of a financial institution with access to financial transactions in a public space without the need for a human clerk or bank teller....
 machine (Automatic Teller Machine machine), EAB bank (European American Bank bank), HIV
HIV

Human immunodeficiency virus is a lentivirus that can lead to AIDS , a condition in humans in which the immune system begins to fail, leading to life-threatening opportunistic infections....
 virus (Human Immunodeficiency Virus virus), Microsoft's NT Technology (New Technology Technology) and the formerly redundant SAT
SAT

The SAT Reasoning Test is a standardized testing for college admissions in the Education in the United States. The SAT is owned, published, and developed by the College Board, a non-profit organization in the United States, and was once developed, published, and scored by the Educational Testing Service ....
 test (Scholastic Achievement/Aptitude/Assessment Test test, now simply SAT Reasoning Test).

Simple redefining


Sometimes, the initials continue to stand for an expanded meaning, but the original meaning is simply replaced. Some examples:
  • GAO
    Gao

    ||-||-||}Gao is a city in Songhai and capital of the Gao Region on the River Niger, with a population of 57,978 in 2005.It is also the capital of the surrounding Gao Cercle....
     changed the full form of its name from
    General Accounting Office to Government Accountability Office.
  • SADD changed the full form of its name from Students Against Driving Drunk to Students against Destructive Decisions.
  • The OCLC
    OCLC

    OCLC Online Computer Library Center, Inc. is a "nonprofit, membership, computer library service and research organization dedicated to the public purpose of furthering access to the world's information and reducing information costs", according to its ....
     changed the full form of its name from
    Ohio College Library Center to Online Computer Library Center.
  • YM
    YM

    YM or Ym may refer to:*Yngwie J. Malmsteen, Sweden Guitarist*YM , an United States teen magazine*The IATA code for Montenegro Airlines...
    originally stood for Young Miss, and later Young & Modern, but now stands for simply Your Magazine.
  • WWF
    WWF

    WWF may stand for:*World Wide Fund for Nature , an organization for the conservation of the natural environment*World Wrestling Federation, former name of World Wrestling Entertainment, a sports entertainment company dealing primarily in professional wrestling...
    originally stood for World Wildlife Fund, but now stands for Worldwide Fund for Nature (although the former name is still used in the US)
  • RAID
    RAID

    RAID is an acronym first defined by David A. Patterson , Garth A. Gibson and Randy Katz at the University of California, Berkeley in 1987 to describe a Redundant Array of Inexpensive Disks, a technology that allowed computer users to achieve mainframe-class storage reliability from low-cost and less reliable PC-class disk-drive componen...
    used to mean Redundant Array of Inexpensive Drives, but is now commonly interpreted as Redundant Array of Independent Drives.
  • DVD
    DVD

    DVD, also known as "Digital Versatile Disc" or "Digital Video Disc,"is a popular optical disc data storage device media format. Its main uses are video and data storage....
     was originally an initialism of the unofficial term
    digital videodisk, but is now stated by the DVD Forum
    DVD Forum

    The DVD Forum is an international organization composed of hardware, software, media and content companies that use and develop the DVD and HD DVD formats....
     as standing for
    Digital Versatile Disc.


Backronyms


A
backronym (or bacronym) is a phrase
Phrase

In grammar, a phrase is a group of words that functions as a single unit in the syntax of a Sentence .For example the house at the end of the street is a phrase....
 that is constructed "after the fact" from a previously existing word. For example, the novelist and critic Anthony Burgess
Anthony Burgess

John Burgess Wilson was an England author, poet, playwright, composer, linguist, translator and critic.His Utopian and dystopian fiction satire A Clockwork Orange, widely considered to be his magnum opus, is by far his most famous novel, and was adapted into a famous, if highly controversial, A Clockwork Orange by Stanley Kubrick....
 once proposed that the word "book" ought to stand for "
Box Of Organised Knowledge."

Contrived acronyms


A
contrived acronym is one that has been deliberately designed in such a way that it will be especially apt as a name for the thing being named (such as by having a dual meaning or by borrowing the positive connotations of an existing word). Some examples of contrived acronyms are USA PATRIOT
USA PATRIOT Act

The USA PATRIOT Act, commonly known as the "Patriot Act", is a Act of Congress that President George W. Bush signed into law on October 26, 2001....
, CAPTCHA
CAPTCHA

A CAPTCHA or Captcha is a type of challenge-response authentication test used in computing to ensure that the response is not generated by a computer....
, and ACT UP
AIDS Coalition to Unleash Power

ACT UP, or the AIDS Coalition to Unleash Power, "is a diverse, non-partisan group of individuals united in anger and committed to direct action to end the AIDS crisis."...
. The clothing company French Connection
French Connection (clothing)

French Connection is a company founded in the United Kingdom in 1972 which sells clothing and accessories in many parts of the world.In April 1997, French Connection began branding their clothes "fcuk" ....
 began referring to itself as
FCUK, standing for "French Connection United Kingdom." The company then created t-shirts and several advertising campaigns that exploit the acronym's similarity to the taboo word "fuck
Fuck

Fuck is an English word that, as a transitive verb, means "to have sexual intercourse with". It also has various metaphorical meanings:*The verb "to be fucked" can mean "to be cheated" ....
". See the list of fictional espionage organizations
List of fictional espionage organizations

During the 1960s trend for action-adventure spy thrillers, it was a common practice for fictional spy organizations or their nemeses to employ names that were Acronym and initialism#Contrived acronyms....
 for more examples of contrived acronyms.

Some acronyms are chosen deliberately to avoid a name considered undesirable: for example,
Verliebt in Berlin
Verliebt in Berlin

Verliebt in Berlin is a Golden Rose-winning German telenovela, starring Alexandra Neldel, along with Mathis K?nzler, Tim Sander, and Laura Osswald....
(ViB), a German telenovela
Telenovela

A telenovela is a limited-run Serial melodrama of the type made famous in Latin America. The word is a portmanteau of tele, short for television, and novela ....
, was first intended to be
Alles nur aus Liebe (All for Love), but was changed to avoid the resultant acronym ANAL. Similarly, the Computer Literacy and Internet Technology qualification is known as CLaIT, rather than CLIT
Clitoris

The clitoris is a sex organ that is present only in female mammals. In humans, the visible button-like portion is located near the anterior junction of the labia minora, above the opening of the urethra and vagina....
.

Contrived acronyms differ from backronym
Backronym

A backronym is a reverse Acronym and initialism, a phrase constructed after the fact to make an existing word or words into an acronym.Backronyms may be invented with serious or humorous intent, or may be a type of false or folk etymology....
s in that they were originally conceived with the artificial expanded meaning, while backronyms are later invented expansions.

Macronyms


Where recursive acronym
Recursive acronym

A recursive acronym is an abbreviation that recursion in the expression for which it stands. The term was first used in print in April 1986....
s might contain redundant information, i.e. parts of the acronym is being repeated (when read out, for instance: RAM Memory which would be Random Access Memory Memory), macronyms are acronyms which have acronyms in themselves. That an acronym is a recursive acronym simply means that it somewhere refers back to itself and therefore macronyms are often mistaken as being just a recursive acronym, but the key difference here being that the macronym must contain another acronym. It should also be noted that a macronym need not necessarily be a recursive acronym.

Five examples of macronyms are:
  • GNU
    GNU

    GNU is a computer operating system composed entirely of free software. Its name is a recursive acronym for GNU's Not Unix; it was chosen because its design is Unix-like, but differs from Unix by being free software and containing no Unix code....
    , which stands for "GNU's Not Unix"
  • LAME
    LAME

    LAME is a free software software application used to encoder audio into the MP3 file format. The name LAME is a recursive acronym for LAME Ain't an MP3 Encoder, reflecting LAME's early history when it was not actually an encoder, but merely a set of patches against the freely available ISO demonstration source code....
    , which stands for "LAME Ain't an MP3 Encoder"
  • VHDL, which stands for "VHSIC Hardware Description Language" (VHSIC
    VHSIC

    VHSIC was a 1980s United States of America government program to develop Very-High-Speed Integrated Circuits.The United States Department of Defense launched the VHSIC project in 1980 as a joint tri-service project....
     itself standing for Very High Speed Integrated Circuit.) This example is not a recursive acronym.
  • WINE
    Wine (software)

    Wine is a free software software application that aims to allow Unix-like computer operating systems on the x86 architecture or x86-64 architecture to execute programs written for Microsoft Windows....
    , which stands for "WINE Is Not an Emulator"
  • XNA
    Microsoft XNA

    Microsoft XNA is a set of tools with a managed runtime environment provided by Microsoft that facilitates Video game game development and management....
    , which stands for "XNA's Not Acronymed"


Non-English language


Asian languages


In English language
English language

English is a West Germanic language that originated in Anglo-Saxon England and has lingua franca status in many parts of the world as a result of the military, economic, scientific, political and cultural influence of the British Empire in the 18th, 19th and early 20th centuries and that of the United States from the mid 20th century onwa...
 discussion of languages with syllabic
Syllabary

A syllabary is a set of written symbols that represent syllables, which make up words. A symbol in a syllabary typically represents an optional consonant sound followed by a vowel sound....
 or logographic writing systems (such as Chinese
Chinese language

Chinese or the Sinitic language is a language family consisting of language mutually unintelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the two branches of Sino-Tibetan languages of languages....
, Japanese
Japanese language

IPA: [n?iho?go] is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is related to the Ryukyuan languages....
, and Korean
Korean language

Korean is the official language of North Korea and South Korea. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China....
),
acronym describes short forms that often take the first character of each multi-character element. For example, Beijing University—Beijing Daxue (literally, North-Capital Great-Learning ????)—is widely known as Beida (literally, North-Great ??). However, this is not an absolute rule. In some cases a character in each element is used to form the short form, but not necessarily the first one. For example, Hong Kong University—Xianggang Daxue (literally, Hong-Kong Great-Learning ????)—is known as gangda (literally, Kong-Great ??) instead of xiangda. Still in other cases, not every element is represented in the short form. An example is National People's Congress
National People's Congress

The National People's Congress , abbreviated NPC , is the highest state body and only legislative house in the People's Republic of China....
Quanguo Renmin Daibiao Dahui (literally, Pan-National People Representative Great-Congress ????????), which is renda (literally, People-Great ??) in short. In describing such languages, the term initialism is inapplicable.

There is also a widespread use of acronyms and initialisms in Indonesia
Indonesia

The Republic of Indonesia , is a transcontinental country in Southeast Asia and Oceania. Comprising Islands of Indonesia, it is the world's largest Archipelago state....
 in every aspect of social life. For example, the Golkar
Golkar

The Party of the Functional Groups is a political party in Indonesia. It is also known as Golkar . It was the ruling party during Suharto's New Order , and is the biggest party in today's ruling coalition in Indonesia....
 political party stands for Partai
Golongan Karya, Monas stands for "Monumen Nasional" (National Monument), the Angkot public transport stands for "Angkutan Kota", warnet stands for "warung internet" or internet cafe, and many others.

German


Mid-20th century German showed a tendency toward acronym-contractions of the Gestapo
Gestapo

The was the official secret police of Nazi Germany. Under the overall administration of the Schutzstaffel , it was administered by the Reichssicherheitshauptamt and was considered a dual organization of the Sicherheitsdienst and also a suboffice of the Sicherheitspolizei ....
 (for Geheime Staatspolizei) type: other examples are Hiwi
Hiwi (volunteer)

Hiwi is a German abbreviation. It has two meanings, "voluntary assistant" and "assistant scientist" ....
 (for Hilfswilliger, non-German volunteer in the German Army); Vopo
Volkspolizei

The Volkspolizei was the national police of the German Democratic Republic . The officers were commonly nicknamed VoPo in West Germany....
 (for Volkspolizist, member of police force in the GDR
German Democratic Republic

The German Democratic Republic was a self-declared socialist state created in the Soviet Zone of occupied Germany and the East Berlin of Allied Occupation Zones in Germany....
); Mufuti or MuFuTi (Multifunktionstisch - multi functional table in the GDR). Mockingly, the people call this tendency AbKüFi (Abkürzfimmel – strange habit of abbreviating).

Hebrew


It's common to take more than just one initial letter from each of the words composing the acronym; regardless of this, the abbreviation sign is always written next to the last letter, even if by this it separates letters of the same original word. Examples: ???"? (for ????? ?????, the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
); ???"? (for ???? ???????, the Soviet Union
Soviet Union

The Union of Soviet Socialist Republics was a Constitution of the Soviet Union socialist state that existed in Eurasia from 1922 to 1991.The name is a translation of the , romanization of Russian Soyuz Sovetskikh Sotsialisticheskikh Respublik, abbreviated ????, SSSR....
); ????"? (for ????? ?????, Rishon LeZion
Rishon LeZion

Rishon LeZion , is the List of cities in Israel in Israel, located along the central Israeli Coastal Plain. It is part of the Gush Dan metropolitan area with a population of 224,300 at the end of 2007....
); ???"? (for ??? ????, the school).

Declension


In languages where nouns are declined
Declension

In linguistics, declension is the occurrence of inflection in nouns, pronouns and adjectives, indicating such features as grammatical number , grammatical case , and grammatical gender....
, various methods are used. An example is Finnish, where a colon is used to separate inflection from the letters:
  • An acronym is pronounced as a word: Nato — Natoon "into Nato"
  • An initialism is pronounced as letters: EU — EU:hun "into EU"
  • An initialism is interpreted as words: EU — EU:iin "into EU"


Lenition


In languages such as Scottish Gaelic and Irish
Irish language

Irish , also known as Irish Gaelic, is a Goidelic languages of the Indo-European language family, originating in Ireland and historically spoken by the Irish people....
, where lenition
Lenition

Lenition is a kind of consonant mutation that appears in many languages. Along with assimilation , it is one of the primary sources of historical linguistics of languages....
 (initial consonant mutation) is commonplace, acronyms must also be modified in situations where case and context dictate it. In the case of Scottish Gaelic, a lower case "h" is added after the initial consonant; for example,
BBC Scotland
BBC Scotland

BBC Scotland is a constituent part of the BBC, the Public broadcasting of the United Kingdom. It is, in effect, the national broadcaster for Scotland, having a considerable amount of autonomy from the BBC's London headquarters, and is run by the BBC Trust, who are advised in Scotland, by the Audience Council Scotland....
in the genitive case would be written as BhBC Alba, with the acronym pronounced "VBC". Similarly, the Gaelic acronym for "television" (gd: telebhisean) is TBh, pronounced "TV", as in English.

Extremes


  • The longest acronym, according to the 1965 edition of Acronyms, Initialisms and Abbreviations Dictionary, is ADCOMSUBORDCOMPHIBSPAC, a United States Navy
    United States Navy

    The United States Navy is the navy of the United States Armed Forces. It is one of the seven uniformed services of the United States. The U.S. Navy currently has approximately 331,682 personnel on active duty as of 31 December 2008 and 124,000 in the United States Navy Reserve....
     term that stands for "Administrative Command, Amphibious Forces, Pacific Fleet Subordinate Command." Another term COMNAVSEACOMBATSYSENGSTA which stands for "Commander, Naval Sea Systems Combat Engineering Station" is longer but the word "Combat" is not shortened.
  • The world's longest initialism, according to the Guinness Book of World Records is NIIOMTPLABOPARMBETZHELBETRABSBOMONIMONKONOTDTEKHSTROMONT (??????????????????????????????????????????????????????). The 56-letter initialism (54 in Cyrillic) is from the Concise Dictionary of Soviet Terminology and means "The laboratory for shuttering, reinforcement, concrete and ferroconcrete operations for composite-monolithic and monolithic constructions of the Department of the Technology of Building-assembly operations of the Scientific Research Institute of the Organization for building mechanization and technical aid of the Academy of Building and Architecture of the Union of Soviet Socialist Republics."


See also


  • -onym
    -onym

    The Affix ?onym, in English language, means "word, name," and words ending in ?onym refer to a specified kind of name or word, most of which are classical compounds....
  • Acronyms in healthcare
    Acronyms in healthcare

    The following is a partial list of acronyms commonly used in health care. The terms listed are used within the health care systems of :Category:Healthcare by country....
  • Acronyms in the Philippines
    Acronyms in the Philippines

    Acronyms are popular in the Philippines....
  • Acrostic
    Acrostic

    An acrostic is a poem or other writing in an alphabetic writing system, in which the first letter, syllable or word of each line, paragraph or other recurring feature in the text spells out another message....
  • Amalgamation (names)
    Amalgamation (names)

    An Amalgamated name is a name that is form by combining several previously existing names. These may take the form of an acronym or a blend ....
  • backronym
    Backronym

    A backronym is a reverse Acronym and initialism, a phrase constructed after the fact to make an existing word or words into an acronym.Backronyms may be invented with serious or humorous intent, or may be a type of false or folk etymology....
  • Internet slang
    Internet slang

    Internet slang is slang that Internet users have popularized and, in many cases, coined. Such terms often originate with the purpose of saving keystrokes, and many people use the same abbreviations in SMS language and instant messaging....
  • List of abbreviations
  • List of acronyms and initialisms
    List of acronyms and initialisms

    0?9* 1, = Onekama, Michigan* 2D geometric model - Two-dimensional* 2.5D - "Two-and-a-half-dee": two-dimensional computer graphics where some flat images lie in front of others...
  • List of fictional espionage organizations
    List of fictional espionage organizations

    During the 1960s trend for action-adventure spy thrillers, it was a common practice for fictional spy organizations or their nemeses to employ names that were Acronym and initialism#Contrived acronyms....
  • Portmanteau
  • pseudo-acronym
    Pseudo-acronym

    A pseudo-acronym is an apparent acronym or other abbreviation which doesn't stand for anything, or cannot be officially expanded to some meaning....
  • RAS syndrome
    RAS syndrome

    RAS syndrome stands for Redundant Acronym Syndrome syndrome and refers to the redundant use of one or more of the words that make up an acronym or initialism with the abbreviation itself, thus in effect repeating one or more words....
     (Redundant Acronym Syndrome syndrome)
  • recursive acronym
    Recursive acronym

    A recursive acronym is an abbreviation that recursion in the expression for which it stands. The term was first used in print in April 1986....
  • syllabic abbreviation
  • Three letter acronym


External links

  • - a human edited database of acronyms and abbreviations
  • - a human edited database of acronyms and abbreviations (over 750,000 entries)
  • - a human edited database of user submitted acronyms and abbreviations
  • - searchable, human edited database of categorized acronyms and abbreviations (over 40,000 entries)
  • - database of acronyms and initialisms
  • - a language tool to make new meaningful acronyms and abbreviations
  • - collection of acronyms and abbreviations (more than 600,000 definitions)
  • is a human edited database of acronyms