/ Dictionary / Index R rejoinder: Meaning and Definition of Find definitions for: re•join•der Pronunciation: (ri-join'dur), [key] — n. an answer to a reply; response. a defendant's answer to a plaintiff 's replication. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rejoinder (Thesaurus) rejoin rejuvenate Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language