K is the eleventh letter of the Latin alphabet. K may also refer to:

General uses

K (programming language) K is a proprietary array processing programming language developed by Arthur Whitney and commercialized by Kx Systems. The language serves as the foundation for kdb+, an in-memory, column-based database, and other related financial products. T ...

, an array processing language developed by Arthur Whitney and commercialized by Kx Systems * K (cider), a British draft cider manufactured and distributed by the Gaymer Cider Company of Bath, England *

K band (disambiguation) K band may refer to: * K band (IEEE), a radio frequency band from 18 to 27 GHz * K band (infrared), an atmospheric transmission window centred on 2.2 μm * K band (NATO) The NATO K band is the obsolete designation given to the radio frequencies fro ...

K computer The K computer named for the Japanese word/numeral , meaning 10 quadrillion (1016)See Japanese numbers was a supercomputer manufactured by Fujitsu, installed at the Riken Advanced Institute for Computational Science campus in Kobe, Hyōgo Pref ...

, a Japanese supercomputer *

K-factor (disambiguation) K-factor or K factor may refer to: Engineering and technology * K-factor (aeronautics), the number of pulses expected for every one volumetric unit of fluid passing through a given flow meter * K-factor (centrifugation), relative pelleting effici ...

, several unrelated terms in physics, engineering, telecommunications and chess * K (Broadway Brooklyn Local), earlier KK, a defunct service in the New York City Subway discontinued in 1976 *

K (Eighth Avenue Local) The K Eighth Avenue Local, earlier the AA, was a rapid transit service of the New York City Subway. Its route bullet was colored on station signs, car rollsigns, and the official subway map since it ran on the IND Eighth Avenue Line. The K ope ...

, a defunct service on the New York City Subway, which was known as the AA until 1985 *

Vitamin K Vitamin K refers to structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation ...

, a group of vitamins that are needed to promote blood coagulation *

Kappa Kappa (uppercase Κ, lowercase κ or cursive ; el, κάππα, ''káppa'') is the 10th letter of the Greek alphabet, representing the voiceless velar plosive sound in Ancient and Modern Greek. In the system of Greek numerals, has a value o ...

(Κ) (Greek alphabet) *

Ka (Cyrillic) Ka (К к; italics: ) is a letter of the Cyrillic script. It commonly represents the voiceless velar plosive /k/, like the pronunciation of ⟨k⟩ in "king" or "kick". History The Cyrillic letter Ka was derived from the Greek letter Kapp ...

(К) (Cyrillic alphabet) * Chrysler K platform, 1981–1995 car design used by Chrysler * Low-K, the dielectric constant in semiconductors, electronics, and physics * K–12 education, a designation for the sum of primary and secondary education, used mainly in North America * K, a prefix for

North American call sign Call signs are frequently still used by North American broadcast stations, in addition to amateur radio and other international radio stations that continue to identify by call signs around the world. Each country has a different set of pattern ...

s used by broadcast stations in the US west of the Mississippi River *

K College K College, was also known as South & West Kent College, was an English college of Further Education and Higher Education with facilities across Kent, formed in April 2010, by the merger of South Kent College with West Kent College. In 2014 i ...

, in Tonbridge, Kent

People

* Adem K, Australian musician *

Yasmin K. Yasmin Knoch (born 27 September 1976), known professionally as Yasmin K. and also using the name Y-ass, is a German pop singer. She is best known for appearing in 2001 on the second season of ''Popstars''. Life and career Born in Soufrière, ...

, German singer * K (composer), Indian film composer *

K (singer) Kang Yoon-sung (born November 16, 1983), better known by his stage name K, is a pop singer from South Korea under contract in Japan. He was born in Goyang. In 2004, after achieving little success with his first album in South Korea, K crossed ove ...

(born 1983), Korean singer who works in Japan as a J-pop singer * K, deceased guitarist of Japanese visual kei band Moi Dix Mois

In fiction and literature

Books

* ''K'' (Minogue and Baker book), a photographic book by Kylie Minogue and William Baker * ''K'', a 2011 novel by Bernardo Kucinski, Brazilian journalist and political scientist * ''K.'' (novel), a 1915 novel by Mary Roberts Rinehart * ''

"K" Is for Killer ''"K" Is for Killer'' is the 11th novel in Sue Grafton's "Alphabet" series of mystery novels and features Kinsey Millhone, a private eye based in Santa Teresa, California. The novel was a ''New York Times'' bestseller with a reported 600,000-copy ...

'', the eleventh novel in Sue Grafton's "Alphabet mystery" series, published in 1994

Films and TV

* ''K'' (2002 film), directed by Shoja Azari, an Iranian American * ''K'', a 1997 French film directed by Alexandre Arcady * K (TV series), ''K'' (TV series), a Japanese anime *K, the production code for the 1964 ''Doctor Who'' serial ''The Dalek Invasion of Earth''

Characters

* K, the protagonist of Franz Kafka's 1926 novel ''The Castle (novel), The Castle'' * K, a character in the manga and anime ''Gravitation (manga), ''Gravitation'''' * K, the main character in the novel by the same name by Bernardo Kucinski * K, the main character in the TV series ''Robotto Keiji'' (''Robot Detective'') * K, Todd and Riley's adoptive superspy mother on the Disney program ''The Replacements (TV series), The Replacements'' * K, the protagonist played by John Abraham in ''No Smoking (2007 film), No Smoking'' * K, a character in Natsume Soseki's novel ''Kokoro'' * K, a character in the visual novel Zero Escape: Virtue's Last Reward * K′, also known as "K Dash" or "K Prime", a ''King of Fighters'' character * Agent K, the character played by Tommy Lee Jones in ''Men in Black'', ''Men in Black II'', and ''Men in Black 3'' * Joseph K., the protagonist of Kafka's 1925 novel, ''The Trial'' * K, the main character in the 2017 film ''Blade Runner 2049'' * Dr. K, the character in ''Power Rangers RPM''

Other

* K, a constructed language invented by Robert Dessaix

In mathematics

K_n

and

K_

, the complete graph, complete and complete bipartite graph * K-theory, a branch of topology and algebra *

\mathbb K

, in blackboard bold, is a commonly used symbol for a field (mathematics), field, as an abbreviation of the German ''Körper''. * , the Elliptic integral#Complete elliptic integral of the first kind, complete elliptic integral of the first kind

In music

* K., abbreviation for Ralph Kirkpatrick’s chronological catalogue of Domenico Scarlatti's keyboard sonatas * K., abbreviation for the Köchel catalogue, chronological catalogue of compositions by Wolfgang Amadeus Mozart * K Records, independent record company based in Olympia, Washington

Albums

* K (album), ''K'' (album), 1996 album by Kula Shaker

Songs

*"K", a song by Cul de Sac (band) * K, a song by the Japanese rock band Bump of Chicken * K (The Tutts song), "K" (The Tutts song), 2006 song by The Tutts *"K", a song by The Hold Steady *"K.", a song from Cigarettes After Sex (album), ''Cigarettes After Sex'' (album) by Cigarettes After Sex

In politics

* K, the , the Centre Party (Finland) * K, , the Communist Party (Sweden) * K, the politics and followers of former President of Argentina Néstor Kirchner (1950-2010)

As a symbol or abbreviation

* k, from Latin kilo, for 1000 (number) * K, ketamine, a street abbreviation for a recreational drug * K, Kyocera' s mobile phones in Japan * K, a strikeout in baseball scorekeeping * K, a contract in legal shorthand * k, a voiceless velar plosive in the International Phonetic Alphabet * K, key color (i.e., black) in the CMYK color model, especially for printing * k, abbreviation of okay, commonly used in instant messaging, or in S.M.S. messages * K, the construction point of a ski jumping hill * k, a shorthand for a knighthood in the British honours system * K, the ticker symbol on the New York Stock Exchange for the Kellogg Company *K, abbreviation of gridiron football position Placekicker, Kicker (also known as placekicker)

Unit

* k, symbol of the ''kilo-'' prefix in the SI and other systems of unit that denotes multiples of 1000 * K, kelvin, the SI unit of thermodynamic temperature * K (upper case), informal abbreviation for kibibyte or 1024 bytes * k (lower case), informal abbreviation for kilobyte or 1000 bytes * k, kilobit (correctly kbit) * k or K, abbreviation for kilometre (SI symbol: km) (especially in measured-distance sports, e.g. "10K run") * k or K, abbreviation for kilohm, a measure of resistance in electronics

In the natural sciences

* K, one-letter designation for the amino acid lysine * K, for carrying capacity of an environment * K carat (purity), measurement applied to gold * K, the Cretaceous geological period

In the physical sciences

* Potassium, symbol K, a chemical element * ''k'', Wavenumber#In wave equations, angular wavenumber of a wave * k, wavevector of a wave * K, the symbol that represents a kaon in particle physics * ''k'', the spring constant in Hooke's law relating deformation (strain) and force applied (stress) to a material body * ''k'' or ''k'', the Boltzmann constant, the physical constant relating energy and temperature at the particle level *

\kappa

or ''K'', relative static permittivity (dielectric constant) * ''k''_e, the Coulomb constant * ''K'', equilibrium constant * ''k'', thermal conductivity * ''k'', the Gaussian gravitational constant * ''k'', often used for some proportionality constant

Military and guns

* List of military time zones#K, Kilo, the military time zone code for UTC+10:00 * Operation K, a Japanese World War II naval operation * The K Project, a series of five nuclear tests by the Soviet Union * Swedish K, a submachine gun * AK-47, an assault rifle

Transportation

*K (Los Angeles Railway), defunct streetcar line in Los Angeles, California * K (Broadway Brooklyn Local), earlier KK, discontinued in 1976 *

, a defunct train service on the New York City Subway, which was known as the AA until 1985 *K Ingleside, K Ingleside (San Francisco Muni) *K Line (Los Angeles Metro)