Noun
a body of dancers or singers who perform together
Source: WordNetAmericans enjoy uniformity in a way that the British don't; they wanted everybody of a sort of nice chorus line height and here I was, this person who was a good three inches taller than anyone else on the end of the line. Jeremy Irons
In '75, the year both A Chorus Line and Chicago hit Broadway, my head spun around and I became the ultimate theater queen for life. Michael Musto