pairs

n. match; whole consisting of two parts; couple, two people who are connected in a relationship (i.e. engaged, married, dating); two people who are working partners in a project; two animal that are joined for mating or working

v. couple; be part one of a match; mate; form pairs

Concentration, also known as Memory or simply Pairs, is a card game in which all of the cards are laid face down on a surface and two cards are flipped face up over each turn. The object of the game is to turn over pairs of matching cards. Concentration can be played with any number of players or as solitaire, and is an especially good game for young children, though adults may find it challenging and stimulating as well. The scheme is often used in quiz shows and can be employed as an educational game. The term Pelmanism has its origin in the Pelman Institute in London, where the card game is believed to have originated in the late nineteenth century as part of a mental education program, and can refer to this and similar games, this type of mental education, or any education system designed to improve memory.
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n. Pair, member of the french nobility

n. colleague, fellow worker

adj. even

n. peer, person of equal rank or standing, friend

n. peer