#1 threesome n. [three, 3, III, trio, tierce, leash, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace] the cardinal number that is the sum of one and one and one. wn
#2 threesome n. [trio, triad, trinity] three people considered as a unit. wn
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