WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the cardinal number that is the sum of four and one
noun.
five people considered as a unit
Word Usage
"And since the fivesome is locked into two more seasons with FX, fans can expect the cast to continue to tackle the big issues — in increasingly perverse ways (Remember “The Gang Solves the North Korea Situation”?)."