X (disambiguation)
Appearance
X is the twenty-fourth letter of the Latin alphabet.
X may also refer to:
Books and print
- X (magazine), a quarterly review of literature and the arts
- X (manga), a 1992 Japanese manga, anime film and anime television series
- X (Dark Horse Comics), a character and series by Dark Horse Comics
- X (Marvel Comics), a mutant character appearing in Marvel Comics
- X (novel), a Kinsey Millhone novel by Sue Grafton
Computing
- X, the name of the X Window System, a client-server display protocol often used in UNIX environments
- X Window System protocols and architecture, rules for communication between the former client and server
- X (writing speed), the speed at which data is written to an optical disc
- OS X, the current graphical operating system for Apple hardware
- X (file format), file format used by DirectX
- X, the letter commonly used in the buttons to close windows
Companies
- X (company), previously Google X, a subsidiary of Alphabet Inc. which specialises in research and development
- X, the stock symbol for United States Steel Corporation
Radio
- KHTI, formerly KCXX, known as "The 'X' at 103.9 FM", a rock n' roll radio station in the Inland Empire, Southern California
- KTHX-FM, also known as "The 'X' at 100.1 FM", a rock n' roll radio station in Reno, Nevada
- WXLV (FM), former call sign brandeds as "90.3 "The X"", a college radio station in Allentown, Pennsylvania
- KXXR, also known as "93X", an active rock radio station in Minneapolis, Minnesota
- WBSX, also known as 97.9X in Scranton/Wilkes-Barre/Hazelton, Pennsylvania
- WNFZ, also known as "94.3 the X", a modern rock radio station in Knoxville, Tennessee
- WQXA, also known as 105.7 "The 'X'", a modern rock radio station in Harrisburg, Pennsylvania
- WSUN-FM, also known as "97X", a modern rock radio station in Tampa, Florida
- WXDX-FM, also known as "The 'X' at 105.9", a modern rock radio station in Pittsburgh, Pennsylvania
- WZDA, formerly known as "103.9 The 'X'", a modern rock radio station in Dayton, Ohio
- WXLP, 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, also known as "91X", a modern rock radio station in San Diego, California
- XFM is a commercial radio station in London and Manchester, UK, owned by Global Radio
- The initial letter of many stations originating in Mexico
- WROX-FM, also known as "96X," a modern rock radio station in Norfolk, Virginia
Film and television
Film
- X-rated, a rating given to films suitable for an adult-only audience
- X (1963 film), subtitled The Man with the X-Ray Eyes, an American science-fiction film
- X (1986 film), a Norwegian film direct by Oddvar Einarson
- X (2014 film), an Indian anthology film
- Malcolm X (1992 film), a film by Spike Lee promoted with the alternate title X
- Jason X, a 2001 American science fiction horror film
- X: Night of Vengeance, a 2011 film by Australian director Jon Hewitt
Television
- The X (TV series), a Canadian children's television program produced by the Canadian Broadcasting Corporation
- The X's, an American animated television series
- Kamen Rider X, a Japanese television series and part of the Kamen Rider franchise
- WXSP-CD, a Class-A television station in Grand Rapids, Michigan branded as "The X"
- X'ed, to be the victim of a hidden camera prank on The Jamie Kennedy Experiment
Language
- Chi (letter), the twenty-second letter of the Greek alphabet, often used to abbreviate "Christ"
- Kha (Cyrillic), 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
Mathematics
- 10 (number) (Roman numeral: X)
- x, a common variable for unknown or changing concepts in mathematics
- Multiplication sign (× or ✕)
- Cross product or vector product (×)
- x, an axis in the Cartesian coordinate system
Music
Bands and artists
- X (American band), American punk band
- X (Australian band), Australian punk band
- X Japan, Japanese metal band, originally named X from 1982–1992
- Group X, British instrumental band from the 1960s
- Gröûp X, comical faux Saudi Arabian band who are actually American
- Shaun Ryder sometimes uses the pseudonym X (born 1962)
- Director X (born 1975), Canadian music video director also known as X and as Little X
- Liberty X, British pop vocal group
- Terminator X, the stage name for American DJ Norman Roberts who worked with Public Enemy
Albums
- X (Trace Adkins album), released in 2008 by Trace Adkins
- X (Kylie Minogue album), released in 2007 by Kylie Minogue
- X (K-Ci & JoJo album), released in 2000 by K-Ci & JoJo
- X (Kristeen Young album), released in 2004 by Kristeen Young
- X (INXS album), released in 1990 by INXS
- X (Def Leppard album), released in 2002 by Def Leppard
- X (Liberty X album), released in 2005 by Liberty X
- X (Klaus Schulze album), released in 1978 by Klaus Schulze
- X (Anna Vissi album), released in 2002 by Anna Vissi
- X (Spock's Beard album), released in 2010 by Spock's Beard
- X (Royal Hunt album), released in 2010 by Royal Hunt
- X (Ed Sheeran album) (read as "Multiply"), released in 2014 by Ed Sheeran
- X the album, Christian compilation album series released annually by Tooth and Nail Records since 2004
- X (Fourplay album), released in 2006 by Fourplay
- X (Gnags album), released in 1983 by Gnags
- X (Chris Brown album), released in 2014 by Chris Brown
- X (Roll Deep album), released in 2012 by Roll Deep
- X (The 69 Eyes album)
- X (Lucki mixtape), released in 2015 by Lucki
Songs
- "X" (Liberty X song)
- "X" (Xzibit song)
- "X", a song from the album Angels & Demons by Peter Andre
- "X", a song from the album The Magic Position by Patrick Wolf
- "X", a song from the album X by Chris Brown
- "X", a song from the album Pain Is Love by Ja Rule featuring Missy Elliott and Tweet
- "X", a song from the album Blue Blood by X Japan
- "X", a song from the album Future History by Jason Derulo
- "X", a song from the album Toxicity by System of a Down
People
- Clarence 13X, founder of the 5 Percent Nation
- Clyde X, Nation of Islam official
- Laura X, feminist historian
- Little X, also known as Lil X, a Canadian music video director
- Princess X (musician), former stage name of musician Liza Fox
- Malcolm X (1925–1965), civil rights activist
- Michael X (1933–1975), activist and criminal
- Khoisan X (1955–2010), political activist
- X, the girl in the X Case, a landmark court case about abortion in Ireland
- X, surname often assumed by members of the Nation of Islam
- X, ring name of wrestler Carl Ouellet
Fictional characters
- X (The X-Files), a character from the television series The X-files
Organizations
- Organization X, pro-royalist and anti-communist guerrilla group, active during the Axis occupation of Greece and the Greek Civil War
- The X, nickname for École Polytechnique, a French engineering school
- St. Francis Xavier University, a university in Antigonish, Nova Scotia
Science
- Reactance (electronics) (X), the imaginary part of electrical impedance
- X unit (X), in physics
- X-wave, a type of waveform
- X band, part of the microwave band of the electromagnetic spectrum
- X radiation, made up of X-rays (Roentgen radiation)
- X chromosome, one of the two sex-determining chromosomes in many animal species, including mammals
- X (charge), a conserved quantum number in particle physics
- Mole fraction (X)
- Planet X, a hypothesised planet in the outer solar system
- Galaxy X (galaxy), a dark galaxy
- Magnification (×), in optics
- × (or x), in binomial nomenclature as part of a hybrid name in botany
- X, a comet of unknown orbit
- Extension (x), the change in length of wire when force is applied to a it under Hooke's law
- X, the pseudoelement symbol for a halogen or halide in organic chemistry; See Skeletal formula
Video games
- X (game series), 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), an annual trade show hosted by Microsoft to showcase Xbox merchandise
- Dance Dance Revolution X, a 2008 music video game by Konami
- Mega Man X (character) (also known as "X"), the protagonist in the Mega Man X video game series
- X Parasite, a central subject of the 2002 game Metroid Fusion for Nintendo's Game Boy Advance handheld console
- 'Xenoblade Chronicles X', a game coming out for Nintendo's Wii U in 2015
- "Radio X" and "Channel X", the name of separate radio stations from Grand Theft Auto: San Andreas, and Grand Theft Auto V.
- Pokémon X, one of two paired games for the Nintendo 3DS in the Pokémon series
Other uses
- X mark, a common written symbol of negation or affirmation
- X, the pseudonym under which the "X Article", formally titled "The Sources of Soviet Conduct", was published in Foreign Affairs magazine
- X (automobile), a French car produced in 1908 and 1909
- X (book), subtitled Writings ’79–’82, a book by avant garde composer John Cage
- X (demo party), a Dutch demoscene party which started in 1995
- X, a handwritten symbol for a kiss
- X is a street name for the drug MDMA
- "Study No. X", a poem by Pierre Coupey
- X, the symbol for a strike in bowling
- X, often used by straight edgers to show their commitment to their lifestyle
- ╳, a box drawing character
- Ⓧ may refer to a typographical symbol in Japanese resale price maintenance
- X, sometimes used in acronyms and other abbreviations to represent the word "cross"
- X, the legal signature of an illiterate person
- X, a symbol used on a treasure map to show the location of the hidden treasure
- X (roller coaster), a roller coaster in Thorpe Park, England
- X² (roller coaster), the world's first spinning coaster, at Six Flags Magic Mountain
- The X may refer to the Xcel Energy Center, an arena in Saint Paul, Minnesota
- X (gender identity), used on passports and identification documents to denote intersex or indeterminate gender
See also
- Chi (disambiguation)
- Doctor X (disambiguation)
- Ex (disambiguation)
- Galaxy X (disambiguation)
- Miss X (disambiguation)
- Mister X (disambiguation)
- Model X (disambiguation)
- Professor X (disambiguation)
- Project X (disambiguation)
- Racer X (disambiguation)
- Saltire
- X marks the spot (disambiguation)
- XX (disambiguation)
- XXX (disambiguation)
- XXXX (disambiguation)