Breadcrumb Home > Thesaurus > T Synonyms of threesome Find synonyms for: Noun 1. three, 3, III, trio, threesome, tierce, leash, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace, digit, figure usage: the cardinal number that is the sum of one and one and one 2. trio, threesome, triad, trinity, gathering, assemblage usage: three people considered as a unit WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of threesome (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: agitprop Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language