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}]