Meaning of threesome

three•some

Pronunciation: (thrē'sum), [key]
— adj.
  1. consisting of three; threefold.
  2. performed or played by three persons.
—n.
  1. three forming a group.
  2. something in which three persons participate, as certain games.
  3. a match in which two players, playing alternately with one ball, compete against a third player who also plays one ball.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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