Pair

• 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==