[1] : The Collaborative International Dictionary of English v.0.48

foursome \four"some\ f=or"su^m, a. four + 2d -some.
   consisting of four; requiring four participants. scot. or
   golf
   webster 1913 suppl.

[2] : The Collaborative International Dictionary of English v.0.48

foursome \four"some\, n.
   1. golf a game between four players, with two on each side
      and each side playing but one ball, the partners striking
      alternately. it is called a mixed foursome when each side
      consists of a man and a woman.
      webster 1913 suppl.

   2. a group of four people or objects; as, we need another
      player to make a foursome for bridge.
      pjc

[3] : WordNet (r) 2.0

foursome
     n 1: four people considered as a unit; "he joined a barbershop
          quartet"; "the foursome teed off before 9 a.m." syn: quartet,
           quartette
     2: the cardinal number that is the sum of three and one syn: four,
         4, iv, tetrad, quatern, quaternion, quaternary,
         quaternity, quartet, quadruplet, little joe
see also:
quartet quartette four 4 iv tetrad 
quatern quaternion quaternary quaternity quadruplet 
little joe 

[4] : Moby Thesaurus II by Grady Ward, 1.0

50 moby thesaurus words for "foursome":
   little joe, biquadrate, bout, contest, decathlon, double-header,
   doubles, event, four, four-part diaphony, game, games of chance,
   go, match, meet, pentathlon, play, play-off, quad, quadrangle,
   quadrature, quadrennium, quadrilateral, quadrille, quadrinomial,
   quadruplet, quartet, quatern, quaternary, quaternion, quaternity,
   quatrefoil, race, rectangle, runoff, singles, sport, square,
   square dance, squaring, tetrad, tetragon, tetragram,
   tetragrammaton, tetrahedron, tetralogy, tetraphony, tetrapody,
   threesome, twosome

Foursome >> F Words
Foursome, definition of term: Foursome
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