closet queen vs homo

closet queen and homo both are nouns.

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

As nouns, homo is a hypernym of closet queen; that is, homo 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
homo: someone who is sexually attracted to persons of the same sex

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

closet queen (noun)	homo (noun)
a negative term for a homosexual man who chooses not to reveal his sexual orientation	any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage
	someone who is sexually attracted to persons of the same sex