co-star vs dramatic art

co-star and dramatic art both are nouns.

Word	Noun	Adjective	Verb	Adverb
co-star	Yes	No	Yes	No
dramatic art	Yes	No	No	No

co-star (noun)	dramatic art (noun)
one of two actors who are given equal status as stars in a play or film	the art of writing and producing plays

co-star (verb)	dramatic art (verb)
be the co-star in a performance
feature as the co-star in a performance