A number of things resembling one another, or belonging together; a set; as, a pair or flight of stairs. "A pair of beads." Chaucer. Beau. & Fl. "Four pair of stairs." Macaulay. [Now mostly or quite disused.]
Two things of a kind, similar in form, suited to each other, and intended to be used together; as, a pair of gloves or stockings; a pair of shoes.
Two of a sort; a span; a yoke; a couple; a brace; as, a pair of horses; a pair of oxen.