/ Dictionary / Index E expository: Meaning and Definition of Find definitions for: ex•pos•i•to•ry Pronunciation: (ik-spoz'i-tôr"ē, -tōr"ē), [key] — adj. of the nature of exposition; serving to expound, set forth, or explain: an expository essay; expository writing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expository (Thesaurus) expositor ex post Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language