pair, brace (noun)

a set of two similar things considered as a unit

couple, pair, twosome, twain, brace, span, yoke, couplet, distich, duo, duet, dyad, duad (noun)

two items of the same kind

pair (noun)

two people considered as a unit

pair (verb)

a poker hand with 2 cards of the same value

pair, pair off, partner off, couple (verb)

form a pair or pairs

"The two old friends paired off"

match, mate, couple, pair, twin (verb)

bring two objects, ideas, or people together

"This fact is coupled to the other one"; "Matchmaker, can you match my daughter with a nice young man?"; "The student was paired with a partner for collaboration on the project"

pair, geminate (verb)

occur in pairs

pair, geminate (verb)

arrange in pairs

"Pair these numbers"

copulate, mate, pair, couple (verb)

engage in sexual intercourse

"Birds mate in the Spring"

pair (Noun)

Two similar or identical things taken together; often followed by of.

pair (Noun)

Two people in a relationship, partnership (especially sexual) or friendship.

pair (Noun)

Used with binary nouns (often in the plural to indicate multiple instances, since such nouns are plurale tantum)

pair (Noun)

A couple of working animals attached to work together, as by a yoke.

pair (Noun)

A poker hand that contains of two cards of identical rank, which cannot also count as a better hand.

pair (Noun)

A score of zero runs (a duck) in both innings of a two-innings match

pair (Noun)

A double play, two outs recorded in one play

pair (Noun)

A doubleheader, two games played on the same day between the same teams

pair (Noun)

A pair of breasts

pair (Verb)

To bring two (animals, notably dogs) together for mating.

pair (Verb)

To group into sets of two.

pair (Noun)

The exclusion of one member of a parliamentary party from a vote, if a member of the other party is absent for important personal reasons.