pair

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/pɛə(ɹ)/ English

Definitions

Two similar or identical things taken together; often followed by of.“I couldn't decide which of the pair of designer shirts I preferred, so I bought the pair.”
Two people in a relationship, partnership or friendship.“Spouses should make a great pair.”
Used with binary nouns (often in the plural to indicate multiple instances, since such nouns are plural only, except in some technical contexts)“a pair of scissors; two pairs of spectacles; several pairs of jeans”
A couple of working animals attached to work together, as by a yoke.“A pair is harder to drive than two mounts with separate riders.”

To group into one or more sets of two.“The wedding guests were paired boy/girl and groom's party/bride's party.”
To bring two (animals, notably dogs) together for mating.
To engage (oneself) with another of opposite opinions not to vote on a particular question or class of questions.
To suit; to fit, as a counterpart.