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

Derived forms: threesomes

Type of: assemblage, digit, figure, gathering

Encyclopedia: Threesome, film