/ Dictionary / Index G grand penitentiary: Meaning and Definition of Find definitions for: grand' peniten'tiary. Pronunciation: [key] See under(def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grand passion grand piano Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language