reply vs sass

reply and sass both are nouns.

Word	Noun	Adjective	Verb	Adverb
reply	Yes	No	Yes	No
sass	Yes	No	Yes	No

As verbs, sass is a hyponym of reply; that is, sass is a word with a more specific, narrower meaning than reply:

Other hyponyms of reply include call back, counter, field, come back, rejoin, repay, retort, return, riposte, bridle.

reply (noun)	sass (noun)
the speech act of continuing a conversational exchange	an impudent or insolent rejoinder
a statement (either spoken or written) that is made to reply to a question or request or criticism or accusation

reply (verb)	sass (verb)
react verbally	answer back in an impudent or insolent manner