Esq vs adult male

Esq and adult male both are nouns.

Word	Noun	Adjective	Verb	Adverb
Esq	Yes	No	No	No
adult male	Yes	No	No	No

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

Esq: a title of respect for a member of the English gentry ranking just below a knight; placed after the name
adult male: an adult person who is male (as opposed to a woman)

Other hypernyms of Esq include man.

Esq (noun)	adult male (noun)
a title of respect for a member of the English gentry ranking just below a knight; placed after the name	an adult person who is male (as opposed to a woman)