shirtlifter vs homo

shirtlifter and homo both are nouns.

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

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

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

shirtlifter (noun)	homo (noun)
a homosexual man	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