/ Dictionary / Index E expositor: Meaning and Definition of Find definitions for: ex•pos•i•tor Pronunciation: (ik-spoz'i-tur), [key] — n. a person who expounds or gives an exposition. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expositor (Thesaurus) exposition expository Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language