/ Dictionary / Index H Hilary of Poitiers: Meaning and Definition of Find definitions for: Hil'ary of Poitiers' Pronunciation: (ē-ler' du pwa-tyā'). [key] a.d. c300–368, French bishop and theologian. French, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Hilary Hilbert 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