retort vs rejoinder

retort and rejoinder both are nouns.

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

As nouns, retort and rejoinder are synonyms defined as:

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

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

retort (noun)	rejoinder (noun)
a vessel where substances are distilled or decomposed by heat	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

retort (verb)	rejoinder (verb)
answer back