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ISO 15919

ISO 15919

Overview
ISO 15919 Transliteration of Devanagari
Devanagari
Devanagari , also called Nagari , is an abugida alphabet of India and Nepal. It is written from left to right, lacks distinct letter cases, and is recognizable by a distinctive horizontal line running along the tops of the letters that links them together. Devanāgarī is the main script used to...

 and related Indic scripts
Brahmic family of scripts
The Brahmic family is a family of abugidas used in South Asia, Southeast Asia, and parts of Central Asia and East Asia, descended from the Brāhmī script.The individual writing systems may be called Brahmic scripts or Indic scripts....

 into Latin characters
is an international standard for the transliteration
Transliteration
Transliteration is the practice of converting a text from one writing system into another in a systematic way.-Definitions:From an information-theoretical point of view, transliteration is a mapping from one system of writing into another, word by word, or ideally letter by letter...

 of Indic scripts to the Latin alphabet
Latin alphabet
The Latin alphabet, also called the Roman alphabet, is the most widely used alphabetic writing system in the world today. It evolved from the western variety of the Greek alphabet called the Cumaean alphabet, and was initially developed by the ancient Romans to write the Latin language.During the...

 formed in 2001. It uses diacritic
Diacritic
A diacritic is an ancillary glyph added to a letter, or basic glyph. The term derives from the Greek διακριτικός . Diacritic is both an adjective and a noun, whereas diacritical is only an adjective...

s to map the much larger set of Brahmic consonant
Consonant
In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the upper vocal tract, the upper vocal tract being defined as that part of the vocal tract that lies above the larynx...

s and vowel
Vowel
In phonetics, a vowel is a sound in spoken language, such as English ah! or oh! , pronounced with an open vocal tract so that there is no build-up of air pressure at any point above the glottis. This contrasts with consonants, such as English sh! , where there is a constriction or closure at some...

s to the Latin script.

ISO 15919 is an international standard on the romanization
Romanization
In linguistics, romanization or latinization, alternately spelt as latinisation or romanisation , is the representation of a written word or spoken speech with the Roman alphabet, or a system for doing so, where the original word or language uses a different writing system...

 of many Indic scripts, which was agreed upon in 2001 by a network of the national standards institutes of 157 countries.

Another standard, United Nations Romanization Systems for Geographical Names (UNRSGN), was developed by the United Nations Group of Experts on Geographical Names (UNGEGN) and covers many Indic scripts.

ALA-LC was approved by the Library of Congress and the American Library Association and is a US standard.
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Encyclopedia
ISO 15919 Transliteration of Devanagari
Devanagari
Devanagari , also called Nagari , is an abugida alphabet of India and Nepal. It is written from left to right, lacks distinct letter cases, and is recognizable by a distinctive horizontal line running along the tops of the letters that links them together. Devanāgarī is the main script used to...

 and related Indic scripts
Brahmic family of scripts
The Brahmic family is a family of abugidas used in South Asia, Southeast Asia, and parts of Central Asia and East Asia, descended from the Brāhmī script.The individual writing systems may be called Brahmic scripts or Indic scripts....

 into Latin characters
is an international standard for the transliteration
Transliteration
Transliteration is the practice of converting a text from one writing system into another in a systematic way.-Definitions:From an information-theoretical point of view, transliteration is a mapping from one system of writing into another, word by word, or ideally letter by letter...

 of Indic scripts to the Latin alphabet
Latin alphabet
The Latin alphabet, also called the Roman alphabet, is the most widely used alphabetic writing system in the world today. It evolved from the western variety of the Greek alphabet called the Cumaean alphabet, and was initially developed by the ancient Romans to write the Latin language.During the...

 formed in 2001. It uses diacritic
Diacritic
A diacritic is an ancillary glyph added to a letter, or basic glyph. The term derives from the Greek διακριτικός . Diacritic is both an adjective and a noun, whereas diacritical is only an adjective...

s to map the much larger set of Brahmic consonant
Consonant
In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the upper vocal tract, the upper vocal tract being defined as that part of the vocal tract that lies above the larynx...

s and vowel
Vowel
In phonetics, a vowel is a sound in spoken language, such as English ah! or oh! , pronounced with an open vocal tract so that there is no build-up of air pressure at any point above the glottis. This contrasts with consonants, such as English sh! , where there is a constriction or closure at some...

s to the Latin script.

ISO 15919 and other systems


ISO 15919 is an international standard on the romanization
Romanization
In linguistics, romanization or latinization, alternately spelt as latinisation or romanisation , is the representation of a written word or spoken speech with the Roman alphabet, or a system for doing so, where the original word or language uses a different writing system...

 of many Indic scripts, which was agreed upon in 2001 by a network of the national standards institutes of 157 countries.

Another standard, United Nations Romanization Systems for Geographical Names (UNRSGN), was developed by the United Nations Group of Experts on Geographical Names (UNGEGN) and covers many Indic scripts.

ALA-LC was approved by the Library of Congress and the American Library Association and is a US standard. IAST
IAST
The International Alphabet of Sanskrit Transliteration is a popular transliteration scheme that allows a lossless romanization of Indic scripts.-Popularity:IAST is the most popular transliteration scheme for romanization of Sanskrit and Pali...

 is not a standard as no formally approved document exists for it but a convention developed in Europe for the transliteration
Transliteration
Transliteration is the practice of converting a text from one writing system into another in a systematic way.-Definitions:From an information-theoretical point of view, transliteration is a mapping from one system of writing into another, word by word, or ideally letter by letter...

 of Sanskrit rather than that of Indic scripts.

As a notable difference, both international standards, ISO 15919 and UNRSGN transliterate anusvāra
Anusvara
Anusvara is the diacritic used to mark a type of nasalization used in a number of Indic languages. Depending on the location of the anusvara in the word and the language within which it is used, its exact pronunciation can vary greatly....

 as , while ALA-LC and IAST
IAST
The International Alphabet of Sanskrit Transliteration is a popular transliteration scheme that allows a lossless romanization of Indic scripts.-Popularity:IAST is the most popular transliteration scheme for romanization of Sanskrit and Pali...

 use for it.

Comparison with UNRSGN and IAST


The table below shows the differences between ISO 15919, UNRSGN and IAST for Devanagari
Devanagari
Devanagari , also called Nagari , is an abugida alphabet of India and Nepal. It is written from left to right, lacks distinct letter cases, and is recognizable by a distinctive horizontal line running along the tops of the letters that links them together. Devanāgarī is the main script used to...

 transliteration.
Devanagari ISO 15919 UNRSGN IAST Comment
e Dravidian languages
Dravidian languages
The Dravidian family of languages includes approximately 73 languages, spoken by around 200 million people. They are mainly spoken in southern India and parts of eastern and central India as well as in northeastern Sri Lanka, Pakistan, Nepal, Bangladesh, Afghanistan, Iran, and overseas in other...

. 'E' now represents . Note that the use of is considered optional in ISO 15919, and using for is acceptable for languages that do not distinguish long and short e.
o

See also

  • List of ISO transliterations
  • National Library at Kolkata romanization
    National Library at Kolkata romanization
    The National Library at Kolkata romanization is the most widely used transliteration scheme in dictionaries and grammars of Indic languages. This transliteration scheme is also known as Library of Congress and is nearly identical to one of the possible ISO 15919 variants.The tables below mostly use...

  • IAST
    IAST
    The International Alphabet of Sanskrit Transliteration is a popular transliteration scheme that allows a lossless romanization of Indic scripts.-Popularity:IAST is the most popular transliteration scheme for romanization of Sanskrit and Pali...


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