DICT.TW Dictionary Taiwan

 four·some /ˈforsəm, ˈfɔr-/
 四人的一組,四人對抗賽,與賽的四人(a.)四人做的,由四組成的

 Four·some a.   Consisting of four; requiring four participants. [Scot. or Golf]

 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.
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 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]