/ Dictionary / Index E expiate: Meaning and Definition of Find definitions for: ex•pi•ate Pronunciation: (ek'spē-āt"), [key] — -at•ed, -at•ing. to atone for; make amends or reparation for: to expiate one's crimes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expiate (Thesaurus) expiable expiation 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