noun

1. 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.”

2. Two people in a relationship, partnership or friendship.

   “Spouses should make a great pair.”

3. 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”

Synonyms: pair of spectacles, spectacles

verb

1. To group into one or more sets of two.

   “The wedding guests were paired boy/girl and groom's party/bride's party.”

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

3. To engage (oneself) with another of opposite opinions not to vote on a particular question or class of questions.