riposte vs rejoinder

riposte and rejoinder both are nouns.

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

As nouns, riposte and rejoinder are synonyms defined as:

riposte and rejoinder: a quick reply to a question or remark (especially a witty or critical one)

Other synonyms of riposte include comeback, counter, replication, retort, return.

riposte (noun)	rejoinder (noun)
(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)
a quick reply to a question or remark (especially a witty or critical one)	(law) a pleading made by a defendant in response to the plaintiff's replication

riposte (verb)	rejoinder (verb)
answer back
make a return thrust