chorus vs chorus girl

chorus and chorus girl both are nouns.

Word	Noun	Adjective	Verb	Adverb
chorus	Yes	No	Yes	No
chorus girl	Yes	No	No	No

chorus (noun)	chorus girl (noun)
the part of a song where a soloist is joined by a group of singers	a woman who dances in a chorus line
any utterance produced simultaneously by a group
a group of people assembled to sing together
a body of dancers or singers who perform together
a company of actors who comment (by speaking or singing in unison) on the action in a classical Greek play

chorus (verb)	chorus girl (verb)
utter in unison
sing in a choir