shirtlifter vs homosexual

shirtlifter and homosexual both are nouns.

Word	Noun	Adjective	Verb	Adverb
shirtlifter	Yes	No	No	No
homosexual	Yes	Yes	No	No

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

Other hypernyms of shirtlifter include gay, homo, homophile, adult male, man.

shirtlifter (noun)	homosexual (noun)
a homosexual man	someone who is sexually attracted to persons of the same sex

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