sass vs riposte

sass and riposte both are nouns.

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

As nouns, riposte is a hypernym of sass; that is, riposte is a word with a broader meaning than sass:

sass: an impudent or insolent rejoinder
riposte: a quick reply to a question or remark (especially a witty or critical one)

Other hypernyms of sass include comeback, counter, rejoinder, replication, retort, return.

sass (noun)	riposte (noun)
an impudent or insolent rejoinder	(fencing) a counterattack made immediately after successfully parrying the opponents lunge
	a quick reply to a question or remark (especially a witty or critical one)

sass (verb)	riposte (verb)
answer back in an impudent or insolent manner	answer back
	make a return thrust