quartet

nouns

the cardinal number that is the sum of three and one
4, IV, Little Joe, four, foursome, quadruplet, quartet, quatern, quaternary, quaternion, quaternity, tetrad
four performers or singers who perform together
quartet, quartette
a set of four similar things considered as a unit
quadruple, quadruplet, quartet, quartette
four people considered as a unit
"he joined a barbershop quartet"; "the foursome teed off before 9 a.m."
foursome, quartet, quartette
a musical composition for four performers
quartet, quartette