/ Dictionary / Index P peace lily: Meaning and Definition of Find definitions for: peace' lil"y Pronunciation: [key] spathiphyllum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. peacekeeping peacemaker Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language