Main entry: common chord, triad
Definition: a three-note major or minor chord; a note and its third and fifth tones
Main entry: triad, trinity, trio, threesome
Definition: three people considered as a unit
Main entry: triad, trio, triple, triplet
Definition: a set of three similar things considered as a unit
Main entry: deuce-ace, 3, trey, triad, trine, trinity, trio, triplet, troika, tercet, ternary, ternion, terzetto, three, threesome, tierce, III, leash
Definition: the cardinal number that is the sum of one and one and one