Language

• Chi (letter)
  Chi (letter)
  Chi is the 22nd letter of the Greek alphabet, pronounced as in English.-Greek:-Ancient Greek:Its value in Ancient Greek was an aspirated velar stop .-Koine Greek:...
  
  , the twenty-second letter of the Greek alphabet, often used to abbreviate "Christ". Cf. Chi Rho
• Kha
  Kha
  Kha or Ha is a letter of the Cyrillic alphabet.It commonly represents the voiceless velar fricative , like the Scottish pronunciation of ⟨ch⟩ in "loch".Kha is romanized as ⟨kh⟩.-History:...
  
  , a letter in the Cyrillic alphabet
• Ḫāʼ, a letter in the Arabic alphabet
• x is a symbol in the International Phonetic Alphabet for the voiceless velar fricative
  Voiceless velar fricative
  The voiceless velar fricative is a type of consonantal sound used in some spoken languages. The sound was part of the consonant inventory of Old English and can still be found in some dialects of English, most notably in Scottish English....
  
  

Mathematics

• X is the Roman numeral for 10
• x is a common variable
  Variable (mathematics)
  In mathematics, a variable is a value that may change within the scope of a given problem or set of operations. In contrast, a constant is a value that remains unchanged, though often unknown or undetermined. The concepts of constants and variables are fundamental to many areas of mathematics and...
  
   for unknown or changing concepts in mathematics
• × is used as the multiplication sign in mathematics, also noted
• × is used as the vector or cross product
  Cross product
  In mathematics, the cross product, vector product, or Gibbs vector product is a binary operation on two vectors in three-dimensional space. It results in a vector which is perpendicular to both of the vectors being multiplied and normal to the plane containing them...
  
  
• x is an axis in the Cartesian coordinate system
  Cartesian coordinate system
  A Cartesian coordinate system specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances from the point to two fixed perpendicular directed lines, measured in the same unit of length...
  
  

Science

• In astronomy, X stands for a comet of unknown orbit
• In electronics, X stands for reactance, the imaginary part of electrical impedance
• In biology, × (or x) is often used in binomial nomenclature as part of a hybrid name
  Hybrid name
  In botanical nomenclature, a hybrid may be given a hybrid name, which is a special kind of botanical name. The ICBN provides the following options in dealing with a hybrid:...
  
  
• X band
  X band
  The X band is a segment of the microwave radio region of the electromagnetic spectrum. In some cases, such as in communication engineering, the frequency range of X band is rather indefinitely set at approximately 7.0 to 11.2 gigahertz . In radar engineering, the frequency range is specified...
  
  , part of the microwave band of the electromagnetic spectrum
• X chromosome
  X chromosome
  The X chromosome is one of the two sex-determining chromosomes in many animal species, including mammals and is common in both males and females. It is a part of the XY sex-determination system and X0 sex-determination system...
  
  , one of the two sex-determining chromosomes in many animal species, including mammals
• Planet X
  Planet X
  Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century but culminated at the start of the 20th with Percival Lowell's quest for Planet X...
  
  , a hypothesised planet in the outer solar system
• X (charge)
  X (charge)
  In particle physics, the X-charge is a conserved quantum number associated with the SO grand unification theory....
  
  , a conserved quantum number in particle physics
• Extension (x), the change in length of wire when force is applied to a it under Hooke's Law
  Hooke's law
  In mechanics, and physics, Hooke's law of elasticity is an approximation that states that the extension of a spring is in direct proportion with the load applied to it. Many materials obey this law as long as the load does not exceed the material's elastic limit. Materials for which Hooke's law...
  
  
• X, the abbreviation for mole fraction
• In organic cemistry, the representation of a halide in chemical formulas; for example in functional group
  Functional group
  In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. The same functional group will undergo the same or similar chemical reaction regardless of the size of the molecule it is a part of...
  
  s

Surname

• Little X
  Little X
  Julien Christian Lutz , better known as Little X, X or Director X, is a Canadian music video director. He also has his own clothing line X Fit...
  
  , also known as Lil X, a Canadian music video director
• Malcolm X
  Malcolm X
  Malcolm X , born Malcolm Little and also known as El-Hajj Malik El-Shabazz , was an African American Muslim minister and human rights activist. To his admirers he was a courageous advocate for the rights of African Americans, a man who indicted white America in the harshest terms for its...
  
  , human rights activist
• Michael X
  Michael X
  Michael X , born Michael de Freitas in Trinidad and Tobago to a Portuguese father and a Bajan-born mother, was a self-styled black revolutionary and civil rights activist in 1960s London. He was also known as Michael Abdul Malik and Abdul Malik...
  
  , civil rights activist
• Khoisan X
  Khoisan X
  Khoisan X, formerly Benny Alexander , was a South African political activist born in Kimberley, South Africa.-Early life:...
  
  , political activist

Computing

• X, short for the X Window System
  X Window System
  The X window system is a computer software system and network protocol that provides a basis for graphical user interfaces and rich input device capability for networked computers...
  
  , a client-server display protocol often used in UNIX environments
• X Window System protocols and architecture
  X Window System protocols and architecture
  In computing, the X Window System is a network-transparent windowing system for bitmap displays. This article details the protocols and technical structure of X11.-Client–server model and network transparency:...
  
  , rules for communication between the former client and server
• X (writing speed)
  X (writing speed)
  Original CD-ROM drives could read data at 150 kibibytes per second. As faster drives were released, the write speeds and read speeds for optical discs came to be indicated by manufacturers in terms of a multiple of the speed of the drives originally released to market. Using the notation nX, n is...
  
  , the speed at which data is written to an optical disc
• Mac OS X
  Mac OS X
  Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, has been included with all new Macintosh computer systems...
  
  , the current graphical operating system for Apple hardware
• X (file format), file format used by DirectX
  DirectX
  Microsoft DirectX is a collection of application programming interfaces for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms. Originally, the names of these APIs all began with Direct, such as Direct3D, DirectDraw, DirectMusic, DirectPlay,...
  
  

Media

• X-rated
  X-rated
  In some countries, X is or has been a motion picture rating reserved for the most explicit films. Films rated X are intended only for viewing by adults, usually legally defined as people over the age of 17.-United Kingdom:...
  
  , a rating given to films suitable for an adult-only audience
• X (1963 film)
  X (1963 film)
  X is a 1963 science fiction/horror motion picture.Directed by Roger Corman from a script by Ray Russell and Robert Dillon, X stars Ray Milland as Dr. James Xavier. A world renowned scientist, Dr. Xavier experiments with X-ray vision and things go horribly wrong...
  
  , subtitled The Man with the X-Ray Eyes, an American science-fiction film
• X (anime)
  X (manga)
  , also known as X/1999, is a Japanese shōjo manga series created by Clamp, a creative team made up by Satsuki Igarashi, Nanase Ohkawa, Tsubaki Nekoi, and Mokona. It premiered in Monthly Asukas May 1992 issue and ran there until the magazine's editors showed concern with the increasingly violent...
  
  , a Japanese manga, anime film and anime television series
• The X (TV series), a Canadian children's television program produced by the Canadian Broadcasting Corporation
• The X's
  The X's
  The X's is an American animated television series created by Carlos Ramos about a family of spies, who must hide their identity from the outside world, but sometimes have a little trouble in doing so....
  
  , an American animated television series
• X (magazine)
  X (magazine)
  X, A Quarterly Review was a British arts review published in London which ran for seven issues between 1959-1962. It was founded and co-edited by Patrick Swift and David Wright...
  
  , a quarterly review of literature and the arts
• X magazine, a pop music magazine launched in the UK in 2010 about The X Factor
  The X Factor (UK)
  The X Factor is a British television music competition to find new singing talent. Created by Simon Cowell, it began in September 2004 and is contested by aspiring singers drawn from public auditions. It is the originator of the international X Factor franchise. The seven series of the show to date...
  
  
• Kamen Rider X
  Kamen Rider X
  , translated as Masked Rider X, is a Japanese tokusatsu superhero television series. It was broadcast in 1974 on NET . It is the third entry in the Kamen Rider Series of tokusatsu shows...
  
  , a Japanese television series and part of the Kamen Rider franchise
• X'ed, to be the victim of a hidden camera prank on The Jamie Kennedy Experiment
  The Jamie Kennedy Experiment
  The Jamie Kennedy Experiment is a half-hour-long American hidden camera/practical joke reality television series that was broadcast on The WB...
  
  

Comics

• X (manga)
  X (manga)
  , also known as X/1999, is a Japanese shōjo manga series created by Clamp, a creative team made up by Satsuki Igarashi, Nanase Ohkawa, Tsubaki Nekoi, and Mokona. It premiered in Monthly Asukas May 1992 issue and ran there until the magazine's editors showed concern with the increasingly violent...
  
  , a Japanese manga series by Clamp
• X (Dark Horse Comics)
  X (Dark Horse Comics)
  X is a comic book Character who starred in his own self-titled series published by Dark Horse Comics for their Comics Greatest World imprint...
  
  , a character and series by Dark Horse Comics
• X (Marvel Comics), a mutant character appearing in Marvel Comics

Video games

• X (game series)
  X (game series)
  X is a science fiction space trading and combat simulator series created by German Developer Egosoft. The series is set in the X Universe where several races populate a number of worlds connected by jumpgates...
  
  , a science fiction space simulator series by Egosoft
• X (1992 video game) (エックス, Ekkusu), an early 3D game for Nintendo's Game Boy console released only in Japan
• X (Xbox show)
  X (Xbox show)
  X is an annually held trade show hosted by Microsoft, showcasing its Xbox - and more recently, Games for Windows - portfolio of hardware, software, and services. The X show has been held every year since 2001 in diverse European cities...
  
  , an annual trade show hosted by Microsoft to showcase Xbox merchandise
• Dance Dance Revolution X
  Dance Dance Revolution X
  Dance Dance Revolution X, abbreviated DDR X or simply X, is a music video game, and a part of the Dance Dance Revolution series. DDR X was originally announced by Konami on May 15, 2008 for the North American PlayStation 2. The arcade version was announced on July 7, 2008, July 9, 2008 in Europe,...
  
  , a music video game by Konami
• Mega Man X (character), the protagonist in the Mega Man X video game series

Albums

• X (Trace Adkins album)
  X (Trace Adkins album)
  -Album:-Singles:-Other charted songs:...
  
  , released in 2008 by American country music artist Trace Adkins
• X (Kylie Minogue album)
  X (Kylie Minogue album)
  X is the tenth studio album by Australian recording artist Kylie Minogue. It is her first release since the greatest hits compilation Ultimate Kylie , and her first studio album since Body Language . X was preceded by lead single "2 Hearts" and released worldwide in November 2007...
  
  , released in 2007 by Australian dance-pop singer Kylie Minogue
• X (K-Ci and JoJo album)
  X (K-Ci and JoJo album)
  X is the third studio album by American R&B duo and brothers K-Ci & JoJo, released December 5, 2000 on MCA. Recording sessions took place during 1999–2000. Production was handled by various producers, including Mike Smoov, Rory Bennett, and DeVante Swing. The album peaked at number twenty on the US...
  
  , released in 2000 by American R&B duo K-Ci and JoJo
• X (Kristeen Young album)
  X (Kristeen Young album)
  X is the fourth album by Kristeen Young. It is themed around various reversals of, and thoughts on, the Ten Commandments.The album was produced by Tony Visconti and engineered by Mario McNulty at Studio B, Looking Glass Studios...
  
  , released in 2004 by American rock singer Kristeen Young
• X (INXS album)
  X (INXS album)
  X is Australian rock band INXS's seventh studio album, released in 1990. It peaked at No. 1 in Australia, No. 5 in the United States, No. 2 in the United Kingdom, No. 5 in Switzerland and No. 10 in Sweden. The album contains four hit singles, "Suicide Blonde", "Disappear",...
  
  , released in 1990 by Australian rock band INXS
• X (Def Leppard album)
  X (Def Leppard album)
  X is the eighth studio album by British rock band Def Leppard, released in 2002 by Island Records. Much like 1996's Slang, it featured another departure from their signature sound by moving into the pop genre. The album charted at #11 on The Billboard 200 and #14 on the UK Albums Chart...
  
  , released in 2002 by British rock band Def Leppard
• X (Liberty X album)
  X (Liberty X album)
  X is the third and final studio album released by British pop group Liberty X. The album was released on 10 October 2005, and was re-issued on 19 June 2006. The album featured the singles "Song 4 Lovers", the double A-side "A Night To Remember" / "Everybody Dance" and "X"...
  
  , released in 2005 by British pop vocal group Liberty X
• X (Klaus Schulze album)
  X (Klaus Schulze album)
  -Personnel:* Klaus Schulze – electronics, percussion * Harald Grosskopf – drum kit* Wolfgang Tiepold – cello , conductor...
  
  , released in 1978 by German electronic musician Klaus Schulze
• X (Anna Vissi album)
  X (Anna Vissi album)
  X is the name of a Greek album by singer Anna Vissi released 2002 in Greece and Cyprus by Sony Music Greece. The album reached 2x platinum in Greece and 2x platinum in Cyprus...
  
  , released in 2002 by Greek singer Anna Vissi
• X (Spock's Beard album)
  X (Spock's Beard album)
  X is the tenth studio album by American progressive rock band Spock's Beard. Similar to what Marillion did for Anoraknophobia, the album was funded by pre-orders of a limited edition of the album before the album was recorded...
  
  , released in 2010 by American progressive rock band Spock's Beard
• X (Royal Hunt album)
  X (Royal Hunt album)
  X is the tenth studio album released by the band Royal Hunt on January, 20th, 2010 on Scarlet Records in Europe and on Marquee/Avalon Records in Japan.-Track listing:All songs written by André Andersen.# "Episode X " - 1:59...
  
  , released in 2010 by Danish progressive metal band Royal Hunt
• X the album
  X the album
  The X series is a collection of compilation albums and compilation DVDs released by BEC Recordings promoting Christian rock music, specifically from Tooth and Nail Records, BEC Recordings, Solid State Records, Gotee Records, ForeFront Records, Sparrow Records, Fervent Records, Flicker Records,...
  
  , Christian compilation album series released annually by Tooth and Nail Records since 2004
• X (Korn Album), released in October of 2011 by Nu-Metal band KoRn

Bands and artists

• X (American band), American punk band
• X (Australian band)
  X (Australian band)
  X is an Australian punk rock band, formed in Sydney in 1977 and led by the late Ian Rilen. The band has split and reformed several times.Although X has had several members, its sound has been defined by two distinctive elements: Rilen's basslines and Steve Lucas's guitar...
  
  , Australian punk band
• X Japan
  X Japan
  is a Japanese heavy metal band founded in 1982 by Yoshiki and Toshi. Originally named X , the group achieved their breakthrough success in 1989 with the release of their second album Blue Blood...
  
  , Japanese metal band, simply named X from 1982-1992
• Shaun Ryder
  Shaun Ryder
  Shaun William Ryder, aka X, is an English musician, occasional newspaper columnist, actor, author, singer-songwriter and television personality, best known as lead singer for Happy Mondays and Black Grape – and more recently as the runner-up of the 2010 version of the British TV Show I'm a...
  
   sometimes uses the pseudonym X
• Director X, a Canadian music video director also known as X and as Little X

Songs

• "X" (Xzibit song)
  X (Xzibit song)
  "X" is the second single from Xzibit's third studio album, Restless. Fellow West Coast rapper Snoop Dogg can be heard talking in the outro. It was produced by Dr. Dre with co-production from Scott Storch and Mel-Man. Dr...
  
  , a song from the 2000 album Restless by Xzibit
• "X" (Liberty X song), a 2006 song from the album X by Liberty X
• "X", a song from the album Toxicity
  Toxicity (album)
  Toxicity is the second album by American heavy metal band System of a Down. Produced by Rick Rubin, Toxicity was released on September 4, 2001 by American Recordings, debuting at #1 on both the United States, with 220,000 copies, and #1 on the Canadian charts...
  
   by System of a Down
• "X", a song from the album Pain Is Love
  Pain Is Love
  -Chart positions:...
  
  by Ja Rule featuring Missy Elliott & Tweet

Radio

• KCXX-FM, also known as "The 'X' at 103.9 FM", a rock n' roll radio station in the Inland Empire, Southern California
• KTHX-FM
  KTHX-FM
  KTHX-FM is a commercial radio station located in Reno, Nevada, broadcasting to the Reno and Lake Tahoe area on 100.1 FM. KTHX-FM airs an adult album alternative music format branded as "The X".-External links:*...
  
  , also known as "The 'X' at 100.1 FM", a rock n' roll radio station in Reno, Nevada
• WXLV
  WXLV (FM)
  WXLV is a radio station broadcasting a variety format. True Free-form College Radio. Licensed to Schnecksville, Pennsylvania, USA, the station serves the Allentown/Bethlehem area and streams worldwide. WXLV is available on the IPhone, Playstation 3, PSP, Wii, and on ITunes radio. The station is...
  
  , also known as "90.3 "The X"", a college radio station in Allentown, Pennsylvania
• KXXR
  KXXR
  KXXR is an active rock radio station broadcasting to the Minneapolis-St. Paul metropolitan area. It is owned by Cumulus Media, which also owns KQRS-FM and the three station trimulcast known as "Love 105"...
  
  , also known as "93X", an active rock radio station in Minneapolis, Minnesota
• WBSX
  WBSX
  WBSX is a FM radio station licensed to the city of Hazleton, Pennsylvania, broadcasting to the Scranton/Wilkes Barre/Hazleton radio market on 97.9 MHz. WBSX airs an active rock music format branded as "97-9 X" .-History:...
  
  , also known as 97.9X in Scranton/Wilkes-Barre/Hazelton, Pennsylvania
• WNFZ
  WNFZ
  WNFZ is a commercial radio station licensed to Powell, Tennessee, broadcasting to the Knoxville, Tennessee area.WNFZ airs an active rock music format branded as "94.3 The X".-History:...
  
  , also known as "94.3 the X", a modern rock radio station in Knoxville, Tennessee
• WQXA
  WQXA
  WQXA-FM is a commercial radio station in Camp Hill, Pennsylvania, broadcasting on 105.7 FM. The station was formerly known as Q106 in the 80s and later became a dance station, known as Hot 105.7 in the early 90s. The format was then changed to an active rock music format branded as first "105.7 The...
  
  , also known as 105.7 "The 'X'", a modern rock radio station in Harrisburg, Pennsylvania
• WRAX, also known as "The 'X' at 100.5", a former call sign for WMMM radio station in Birmingham, Alabama
• WSUN-FM
  WSUN-FM
  WSUN-FM is a commercial modern rock music radio station in Tampa, Florida, broadcasting on 97.1 FM.-History:The station signed on sometime in the late-1970 on the 106.3 FM frequency as WHBS, a station that served primarily Pasco and northern Pinellas Counties. The station later became WVTY, then...
  
  , also known as "97X", a modern rock radio station in Tampa, Florida
• WXDX-FM
  WXDX-FM
  WXDX-FM — branded 105.9 The X — is a modern rock radio station based in Pittsburgh, Pennsylvania. Owned by Clear Channel Communications, the station broadcasts at 105.9 MHz with an effective radiated power of 15.5 kw.-History:...
  
  , also known as "The 'X' at 105.9", a modern rock radio station in Pittsburgh, Pennsylvania
• WXEG
  WXEG
  WXEG is a modern rock formatted radio station based in Dayton, Ohio, and owned by Clear Channel Communications. The station broadcasts at 103.9 MHz with an effective radiated power of 2900 watts. It has three towers located in its city of license of Beavercreek, Ohio, two are...
  
  , also known as "103.9 The 'X'", a modern rock radio station in Dayton, Ohio
• WXLP
  WXLP
  WXLP is a Quad Cities area commercial Classic Hits radio station, licensed to Moline, Illinois. The station is owned by Cumulus Media, with studios located in Davenport, Iowa ....
  
  , also known as "97X," a classic hits station in the Quad Cities, Iowa-Illinois, licensed to Moline, Illinois
• 99X (Atlanta), a modern rock radio station in Atlanta, Georgia now heard only on HD
• XETRA-FM
  XETRA-FM
  XETRA-FM — branded 91X, and sometimes identified as XTRA-FM — is an English language, Mexican-owned modern rock music station broadcasting from Tijuana, Baja California on 91.1 MHz. The studios are located in the Mira Mesa area of San Diego...
  
  , also known as "91X", a modern rock radio station in San Diego, California
• The initial letter of many stations originating in Mexico
• WROX-FM
  WROX-FM
  WROX-FM is a Modern Rock formatted broadcast radio station licensed to Exmore, Virginia, serving the Norfolk/Virginia Beach metro area and the Eastern Shore of Virginia.-Format Tweak:...
  
  , also known as "96X," a modern rock radio station in Norfolk, Virginia

Organisations

• Organization of National Resistance of the Interior X (Chi)
  Organization of National Resistance of the Interior X (Chi)
  The Organization of National Resistance of the Interior X , commonly known as Organization X or simply X , was a resistance group formed during the Axis occupation of Greece, in June 1941...
  
  , anti-communist resistance group, active during the Axis occupation of Greece in World War II

Other uses

• X mark
  X mark
  An x mark is a mark used to indicate the concept of negation as well as affirmation...
  
  , a common written symbol of negation or affirmation
• X, the pseudonym under which the "X Article
  X Article
  The X Article, formally titled The Sources of Soviet Conduct, was published in Foreign Affairs magazine in July 1947. The article was written by George F. Kennan, the Deputy Chief of Mission of the United States to the USSR, from 1944 to 1946, under ambassador W. Averell Harriman.-Background:G. F....
  
  ", formally titled "The Sources of Soviet Conduct", was published in Foreign Affairs magazine
• X (automobile)
  X (automobile)
  The X was a French automobile produced between 1908 and 1909. Little is known about the marque, other than the fact that "an unknown quantity" was manufactured at Kremlin-Bicêtre, and that one model was shown at the 1908 Paris Salon....
  
  , a French car produced in 1908 and 1909
• X² (roller coaster), the world's first spinning coaster, at Six Flags Magic Mountain
• X (John Cage book)
  X (John Cage book)
  X: Writings ’79–’82 is a book by American avant-garde composer John Cage , first published in 1983. The book contains the following works:* "Foreword" * "Writing for the Fourth Time through Finnegans Wake"...
  
  , subtitled Writings ’79–’82, a book by avant garde composer John Cage
• X, A Quartely Review of Literature and the Arts 1959–1962, edited by David Wright
  David Wright (poet)
  David John Murray Wright was an author and "an acclaimed South African-born poet".-Biography:Wright was born in Johannesburg, South Africa 23 February 1920 of normal hearing....
  
   and Patrick Swift
• X (The X-Files)
  X (The X-Files)
  X, sometimes referred to as Mr. X, is a fictional character on the American science fiction television series The X-Files. He serves as an informant, leaking information to FBI Special Agent Fox Mulder to aid Mulder's investigation of paranormal cases, dubbed X-Files...
  
  , a character from the television series The X-files
• x is a handwritten symbol of a kiss
  Kiss
  A kiss is the act of pressing one's lips against the lips or other body parts of another person or of an object. Cultural connotations of kissing vary widely. Depending on the culture and context, a kiss can express sentiments of love, passion, affection, respect, greeting, friendship, and good...
  
  
• X is the stock symbol for United States Steel Corporation
• The X is the nickname for École Polytechnique
  École Polytechnique
  The École Polytechnique is a state-run institution of higher education and research in Palaiseau, Essonne, France, near Paris. Polytechnique is renowned for its four year undergraduate/graduate Master's program...
  
  , a French engineering school
• The X may refer to the Xcel Energy Center
  Xcel Energy Center
  The Xcel Energy Center is a multi-purpose arena located in Saint Paul, Minnesota. It is named for its locally-based corporate sponsor Xcel Energy. With an official capacity of 18,064, the arena has four spectator levels: one suite level and three general seating levels. The arena is owned by the...
  
  , an arena in Saint Paul, Minnesota
• X and ecstasy are street names for the drug MDMA
• X, surname often assumed by members of the Nation of Islam
  Nation of Islam
  The Nation of Islam is a mainly African-American new religious movement founded in Detroit, Michigan by Wallace D. Fard Muhammad in July 1930 to improve the spiritual, mental, social, and economic condition of African-Americans in the United States of America. The movement teaches black pride and...
  
  
• X, ring name of wrestler Carl Ouellet
  Carl Ouellet
  Carl Joseph Yvon Ouellet is a retired Canadian professional wrestler. He has worked for, among other promotions, the World Wrestling Federation, World Championship Wrestling, Extreme Championship Wrestling, and Total Nonstop Action Wrestling.-Beginnings:Carl Ouellet debuted in 1987...
  
  
• X is the symbol for a strike
  Strike (bowling)
  A strike is a term used in bowling to indicate that all of the pins have been knocked down with the first ball of a frame. On scoresheets, a strike is symbolized by an X.-Scoring:...
  
   in bowling
• X is used often by straight edge
  Straight edge
  Straight edge is a subculture of hardcore punk whose adherents refrain from using alcohol, tobacco, and other recreational drugs. It was a direct reaction to the sexual revolution, hedonism, and excess associated with punk rock. For some, this extends to not engaging in promiscuous sex, following a...
  
  rs to show their commitment to their lifestyle
• ╳ is a box drawing character
  Box drawing characters
  Box drawing characters, also known as line drawing characters, or pseudographics, are widely used in text user interfaces to draw various frames and boxes...
  
   may refer to a typographical symbol in Japanese resale price maintenance
• X is sometimes used in acronyms and other abbreviations to represent the word "cross
  Cross
  A cross is a geometrical figure consisting of two lines or bars perpendicular to each other, dividing one or two of the lines in half. The lines usually run vertically and horizontally; if they run obliquely, the design is technically termed a saltire, although the arms of a saltire need not meet...
  
  "
• X is the legal signature
  Signature
  A signature is a handwritten depiction of someone's name, nickname, or even a simple "X" that a person writes on documents as a proof of identity and intent. The writer of a signature is a signatory. Similar to a handwritten signature, a signature work describes the work as readily identifying...
  
   of an illiterate person

See also

• Chi (disambiguation)
• Doctor X (disambiguation)
• Ex (disambiguation)
• Mister X (disambiguation)
• Project X (disambiguation)
• Saltire
  Saltire
  A saltire, or Saint Andrew's Cross, is a heraldic symbol in the form of a diagonal cross or letter ex . Saint Andrew is said to have been martyred on such a cross....
  
  
• XX (disambiguation)
• XXX (disambiguation)
• XXXX (disambiguation)
  XXXX (disambiguation)
  XXXX is a brand of Australian lager beer. It may also refer to:* 48, XXXX, a rare chromosomal disorder in females caused by the presence of four X chromosomes* Fourecks, a continent in the fictional Discworld...
  
  
• X marks the spot (disambiguation)