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threesome

[three-suh m]
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adjective
  1. consisting of three; threefold.
  2. performed or played by three persons.
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noun
  1. three forming a group.
  2. something in which three persons participate, as certain games.
  3. Golf. a match in which two players, playing alternately with one ball, compete against a third player who also plays one ball.
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Origin of threesome

First recorded in 1325–75, threesome is from the Middle English word thresum. See three, -some2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for threesome

threesome

noun
  1. a group of three
  2. golf a match in which a single player playing his own ball competes against two others playing alternate strokes on the same ball
  3. any game, etc, for three people
  4. (modifier) performed by threea threesome game
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for threesome

n.

late 14c., from three + -some (2).

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Online Etymology Dictionary, © 2010 Douglas Harper