ensemble vs chorus line

ensemble and chorus line both are nouns.

Word	Noun	Adjective	Verb	Adverb
ensemble	Yes	No	No	No
chorus line	Yes	No	No	No

As nouns, chorus line is a hypernym of ensemble; that is, chorus line is a word with a broader meaning than ensemble:

Other hypernyms of ensemble include chorus.

ensemble (noun)	chorus line (noun)
a coordinated outfit (set of clothing)	a body of dancers or singers who perform together
the chorus of a ballet company
a group of musicians playing or singing together
an assemblage of parts or details (as in a work of art) considered as forming a whole
a cast other than the principals