closet queen vs homosexual

closet queen and homosexual both are nouns.

Word	Noun	Adjective	Verb	Adverb
closet queen	Yes	No	No	No
homosexual	Yes	Yes	No	No

As nouns, homosexual is a hypernym of closet queen; that is, homosexual is a word with a broader meaning than closet queen:

closet queen: a negative term for a homosexual man who chooses not to reveal his sexual orientation
homosexual: someone who is sexually attracted to persons of the same sex

Other hypernyms of closet queen include gay, homo, homophile.

closet queen (noun)	homosexual (noun)
a negative term for a homosexual man who chooses not to reveal his sexual orientation	someone who is sexually attracted to persons of the same sex

closet queen (adjective)	homosexual (adjective)
	sexually attracted to members of your own sex