Pair or PAIR or Pairing may refer to:
Government and politics
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Pair (parliamentary convention) In parliamentary practice, pairing is an informal arrangement between the government and opposition parties whereby a member of a legislative body agrees or is designated by the party whip to be absent from the chamber or to abstain from voting when ...
, matching of members unable to attend, so as not to change the voting margin
* ''Pair'', a member of the
Prussian House of Lords
The Prussian House of Lords (german: Preußisches Herrenhaus) in Berlin was the upper house of the Landtag of Prussia (german: Preußischer Landtag), the parliament of Prussia from 1850 to 1918. Together with the lower house, the House of Re ...
* ''Pair'', the French equivalent of peer, holder of a French
Pairie, a French high title roughly equivalent to a member of the British peerage
Mathematics
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2 (number), two of something, a pair
* 2-
tuple
In mathematics, a tuple is a finite ordered list (sequence) of elements. An -tuple is a sequence (or ordered list) of elements, where is a non-negative integer. There is only one 0-tuple, referred to as ''the empty tuple''. An -tuple is defi ...
, in mathematics and set theory
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Ordered pair, in mathematics and set theory
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Pairing
In mathematics, a pairing is an ''R''-bilinear map from the Cartesian product of two ''R''-modules, where the underlying ring ''R'' is commutative.
Definition
Let ''R'' be a commutative ring with unit, and let ''M'', ''N'' and ''L'' be ''R''-mod ...
, in mathematics, an R-bilinear map of modules, where R is the underlying ring
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Pair type
In programming languages and type theory, a product of ''types'' is another, compounded, type in a structure. The "operands" of the product are types, and the structure of a product type is determined by the fixed order of the operands in the prod ...
, in programming languages and type theory, a product type with two component types
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Topological pair In mathematics, more specifically algebraic topology, a pair (X,A) is shorthand for an inclusion of topological spaces i\colon A \hookrightarrow X. Sometimes i is assumed to be a cofibration. A morphism from (X,A) to (X',A') is given by two maps f ...
, an inclusion of topological spaces
Science and technology
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Couple (app)
Couple, formerly Pair, was a mobile app that provided a mobile messaging service for two people, especially romantic couples. Like many mobile phone messaging applications, Couple allows users to share text, photos, video and other content. It is a ...
, formerly Pair, a mobile application for two people
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PAIR (puncture-aspiration-injection-reaspiration) The PAIR (''puncture-aspiration-injection-reaspiration''; sometimes ''percutaneous aspiration-injection-reaspiration'') procedure is a noninvasive treatment option to remove hydatid cysts. PAIR is considered an alternative treatment for cystic echin ...
, in medicine
* Pairing, a handshaking process in
Bluetooth
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limi ...
communications
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Pair programming
Pair programming is an software development technique in which two programmers work together at one workstation. One, the ''driver'', writes code while the other, the ''observer'' or ''navigator'', reviews each line of code as it is typed in. The ...
, an agile software development technique
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Pairing (computing), the linking together of devices to allow communications between them
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Twisted pair
Twisted pair cabling is a type of wiring used for communications in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility. Compared to a single conductor or an untwisted ba ...
, a couple of electric wires twisted together
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Crew pairing
A crew is a body or a class of people who work at a common activity, generally in a structured or hierarchical organization. A location in which a crew works is called a crewyard or a workyard. The word has nautical resonances: the tasks involved ...
, a sequence of activities a flight crew member is supposed to perform
Sports and games
* Pair, a team of two in pair skating
* Pair (cricket), a cricket term for being out for 0 in both innings of a match
* One pair (poker), a type of poker hand
*Coxless pair or coxed pair, racing rowing shells
Other uses
* ''Au pair'', a work agreement
* Grow a pair, referring to testicles, a slang term meaning act with more courage
* Patent Application Information Retrieval, an online service providing access to the prosecution histories of U.S. patents and patent applications
* Peer-Allocated Instant Response, for distance learning in the Netherlands
* Wine pairing, the process of pairing food dishes with wine to enhance the dining experience
See also
* Couple (disambiguation), various senses for two joined things
* Even (disambiguation)
* Pear, a fruit
* Pare people, a Tanzanian ethnic group
* Student's t-test#Use, Paired test, a student's t-test in statistical hypothesis testing
2 (number)
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