air host vs adult male

air host and adult male both are nouns.

Word	Noun	Adjective	Verb	Adverb
air host	Yes	No	No	No
adult male	Yes	No	No	No

As nouns, adult male is a hypernym of air host; that is, adult male is a word with a broader meaning than air host:

Other hypernyms of air host include man, flight attendant, steward.

air host (noun)	adult male (noun)
a male steward on an airplane	an adult person who is male (as opposed to a woman)