duad

du·ad  (dd, dy-)

n.

A unit of two objects; a pair.

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[Greek duas, duad-, two, from duo; see dwo- in Indo-European roots.]

Thesaurus

Noun

1.

duad - two items of the same kind           couplet, distich, duet, duo, dyad, twain, twosome, brace, pair, span, yoke, couple fellow, mate - one of a pair; "he lost the mate to his shoe"; "one eye was blue but its fellow was brown" 2, II, two, deuce - the cardinal number that is the sum of one and one or a numeral representing this number doubleton - (bridge) a pair of playing cards that are the only cards in their suit in the hand dealt to a player