Pair or PAIR or Pairing may refer to:

Government and politics

  • Pair (parliamentary convention), matching of members unable to attend, so as not to change the voting margin
  • Pair, a member of the Prussian House of Lords
  • 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

  • 2 (number), two of something, a pair
  • Unordered pair, or pair set, in mathematics and set theory
  • Ordered pair, or 2-tuple, in mathematics and set theory
  • Pairing, in mathematics, an R-bilinear map of modules, where R is the underlying ring
  • Pair type, in programming languages and type theory, a product type with two component types
  • Topological pair, an inclusion of topological spaces

Science and technology

  • Couple (app), formerly Pair, a mobile application for two people
  • PAIR (puncture-aspiration-injection-reaspiration), in medicine
  • Pairing, a handshaking process in Bluetooth communications
  • Pair programming, an agile software development technique
  • Pairing (computing), the linking together of devices to allow communications between them
  • Twisted pair, a couple of electric wires twisted together

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
  • Pairs, one of many alternate names given to Concentration (card game)

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
  • Parts pairing, prevents parts from being swapped
  • 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
  • Paired t test, Student's t-test for paired data in statistical hypothesis testing