Or or OR may refer to:

Arts and entertainment

Film and television

* "O.R.", a 1974 episode of

M*A*S*H ''M*A*S*H'' (Mobile Army Surgical Hospital) is an American media franchise consisting of a series of novels, a film, several television series, plays, and other properties, and based on the semi-autobiographical fiction of Richard Hooker (auth ...

* Or (My Treasure), a 2004 movie from Israel (''Or'' means "light" in Hebrew)

Music

* ''Or'' (album), a 2002 album by Golden Boy with Miss Kittin * ''O*R'', the original title of Olivia Rodrigo's album ''

Sour The gustatory system or sense of taste is the sensory system that is partially responsible for the perception of taste (flavor). Taste is the perception produced or stimulated when a substance in the mouth reacts chemically with taste receptor ...

'', 2021 * "Or", a song by Israeli singer

Chen Aharoni Chen Aharoni ( he, חן אהרוני; also known as Chen and also transliterated as Hen Aharoni; born in Holon, Israel on 12 April 1990) is an Israeli singer-songwriter, musician and television presenter Career ''Kokhav Nolad'' (2007) He came ...

in Kdam Eurovision 2011 *

Or Records Or Records (sometimes capitalized OR Records after their logo) is a small British independent record label, which was established in 1998 and based in London. The label specializes in experimental music and is distributed by Touch Music. They ...

, a record label * Organized Rhyme, a Canadian hip-hop group featuring Tom Green

Businesses and organizations

* Or (political party) (), Israel *

OR Books OR Books is a New York City-based independent publishing house founded by John Oakes and Colin Robinson in 2009. The company sells digital and print-on-demand books directly to the customer and focuses on creative promotion through traditional med ...

, an American publisher * Owasco River Railway, Auburn, New York, U.S. (by reporting mark) * TUI fly Netherlands, formerly ''Arke'', a Dutch charter airline (by IATA designator)

Language and linguistics

Or (digraph) This is a list of digraphs used in various Latin alphabets. Capitalisation involves only the first letter (''ch'' becomes ''Ch'') unless otherwise stated (''ij'' becomes ''IJ''). Letters with diacritics are arranged in alphabetic order accordin ...

, in the Uzbek alphabet * Or (letter) (or ''forfeda''), in Ogham, the Celtic tree alphabet *

Odia language Odia (, ISO: , ; formerly rendered Oriya ) is an Indo-Aryan language spoken in the Indian state of Odisha. It is the official language in Odisha (formerly rendered Orissa), where native speakers make up 82% of the population, and it is al ...

, an ancient Indo-Aryan tongue spoken in East India (ISO 639) * Or, an English

grammatical conjunction In grammar, a conjunction ( abbreviated or ) is a part of speech that connects words, phrases, or clauses that are called the conjuncts of the conjunctions. That definition may overlap with that of other parts of speech and so what constitutes ...

* -or, an English agent noun suffix * Or, a digraph in Taiwanese's

Daī-ghî tōng-iōng pīng-im Daī-ghî tōng-iōng pīng-im (Taiwanese phonetic transcription system, abbr: DT; ) is an orthography in the Latin alphabet for Taiwanese Hokkien based upon Tongyong Pinyin. It is able to use the Latin alphabet to indicate the proper variati ...

phonetic transcription

Places

Europe

Or (Crimea) The Isthmus of Perekop, literally Isthmus of the Trench ( uk, Перекопський перешийок; transliteration: ''Perekops'kyy pereshyyok''; russian: Перекопский перешеек; transliteration: ''Perekopskiy peresheek ...

, an isthmus of the Black Sea * Or (river), a tributary of the Ural *

Province of Oristano The province of Oristano ( it, provincia di Oristano, sc, provìntzia de Aristanis) is a province in the autonomous island region of Sardinia in Italy. Its capital is the city of Oristano. It has an area of , a total population of 160,746 (2016), ...

, Italy (by vehicle code)

United States

Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idah ...

, a U.S. state (by postal abbreviation)

Science, technology, and mathematics

Computing and mathematics

Or (logic) In logic, disjunction is a logical connective typically notated as \lor and read aloud as "or". For instance, the English language sentence "it is raining or it is snowing" can be represented in logic using the disjunctive formula R \lor S ...

, logical disjunction *

Exclusive or Exclusive or or exclusive disjunction is a logical operation that is true if and only if its arguments differ (one is true, the other is false). It is symbolized by the prefix operator J and by the infix operators XOR ( or ), EOR, EXOR, , ...

(XOR), a logical operation *

Bitwise OR In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits. It is a fast and simple action, basic to the higher-level arithmetic ope ...

, an operator in computer programming, typically notated as or or , * The

short-circuit operator A short circuit (sometimes abbreviated to short or s/c) is an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance. This results in an excessive current flowing through the circuit ...

''or'', notated or, , , , or or else *

Elvis operator In certain computer programming languages, the Elvis operator, often written ?:, is a binary operator that returns its first operand if that operand evaluates to a true value, and otherwise evaluates and returns its second operand. This is ident ...

, an operator in computer programming that returns its first operand if its value is considered true, and its right operand if not *

Null coalescing operator The null coalescing operator (called the Logical Defined-Or operator in Perl) is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, including C#, PowerShell as of version 7.0.0, Perl ...

, an operator in computer programming *

Onion routing Onion routing is a technique for anonymous communication over a computer network. In an onion network, messages are encapsulated in layers of encryption, analogous to layers of an onion. The encrypted data is transmitted through a series of net ...

, anonymous networking technique (also Onion Router) *

OR gate The OR gate is a digital logic gate that implements logical disjunction. The OR gate returns true if either or both of its inputs are true; otherwise it returns false. The input and output states are normally represented by different voltage lev ...

, an integrated circuit in electronics * Object-relational mapping

Other uses in science and technology

Odds ratio An odds ratio (OR) is a statistic that quantifies the strength of the association between two events, A and B. The odds ratio is defined as the ratio of the odds of A in the presence of B and the odds of A in the absence of B, or equivalently (du ...

, a measure of effect size in statistics * ''OR'', a previous title of the ''

Journal of the Operational Research Society The ''Journal of the Operational Research Society'' is a peer-reviewed academic journal covering operations research. It is an official journal of The Operational Research Society and has been in existence since 1950. It publishes full length case ...

'' *

Operating room Operation or Operations may refer to: Arts, entertainment and media * ''Operation'' (game), a battery-operated board game that challenges dexterity * Operation (music), a term used in musical set theory * ''Operations'' (magazine), Multi-Ma ...

, in medicine *

Operations research Operations research ( en-GB, operational research) (U.S. Air Force Specialty Code: Operations Analysis), often shortened to the initialism OR, is a discipline that deals with the development and application of analytical methods to improve dec ...

, or operational research, in British English * Operations readiness

Titles and ranks

Official receiver An officer of the Insolvency Service of the United Kingdom, an official receiver (OR) is an officer of the court to which they are attached. The OR is answerable to the courts for carrying out the courts' orders and for fulfilling their duties ...

, a statutory office holder in England and Wales *

Order of Roraima of Guyana The Order of Roraima of Guyana is the second highest National Award of Guyana, and is limited to only thirty five living Guyanese recipients. Established in 1976, it is awarded to any citizen of Guyana who has given outstanding service to the n ...

, an award of the Republic of Guyana *

Other ranks, Denmark (disambiguation) For non-officer ranks in Denmark, see: *Ranks and insignia of Royal Danish Army *Ranks and insignia of Royal Danish Navy *Ranks and insignia of Royal Danish Air Force {{Military unit disambiguation Disambiguation pages with (qualified) titles ...

, military personnel in all branches of the Danish military that are not officers by the NATO system of ranks and insignia *

Other ranks (UK) Other ranks (ORs) in the Royal Marines, British Army, Royal Air Force, and in the armies and air forces of many other Commonwealth countries and the Republic of Ireland, are those personnel who are not commissioned officers, usually including no ...

, personnel who are not commissioned officers, usually including non-commissioned officers (NCOs), in militaries of many Commonwealth countries

Other uses

* Or (name), Hebrew given name and surname *

Official Records of the American Civil War The ''Official Records of the Union and Confederate Armies in the War of the Rebellion'', commonly known as the ''Official Records of the Union and Confederate Armies'' or Official Records (OR or ORs), is the most extensive collection of Americ ...

Olympic record Olympic records are the best performances in a specific event in that event's history in either the Summer Olympic Games or the Winter Olympic Games, including: * Archery (list) * Alpine skiing (records recognized only by FIS) * Athletics (lis ...

, a term for the best performances in Olympic Games * ''Or'' (heraldry), a gold or yellow tincture (from the French word for "gold") * Own

Recognizance In some common law nations, a recognizance is a conditional pledge of money undertaken by a person before a court which, if the person defaults, the person or their sureties will forfeit that sum. It is an obligation of record, entered into before ...

, the basis for releasing someone awaiting trial without bail