Esq vs Esquire

Esq and Esquire both are nouns.

Word	Noun	Adjective	Verb	Adverb
Esq	Yes	No	No	No
Esquire	Yes	No	No	No

As nouns, Esq and Esquire are synonyms defined as:

Esq and Esquire: a title of respect for a member of the English gentry ranking just below a knight; placed after the name

Esq (noun)	Esquire (noun)
a title of respect for a member of the English gentry ranking just below a knight; placed after the name	a title of respect for a member of the English gentry ranking just below a knight; placed after the name