chorus vs song

chorus and song both are nouns.

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

chorus (noun)	song (noun)
the part of a song where a soloist is joined by a group of singers	the act of singing
any utterance produced simultaneously by a group	a short musical composition with words
a group of people assembled to sing together	the characteristic sound produced by a bird
a body of dancers or singers who perform together	a distinctive or characteristic sound
a company of actors who comment (by speaking or singing in unison) on the action in a classical Greek play	a very small sum

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