/ Dictionary / Index S supplication: Meaning and Definition of Find definitions for: sup•pli•ca•tion Pronunciation: (sup"li-kā'shun), [key] — n. an act or instance of supplicating; humble prayer, entreaty, or petition. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: supplication (Thesaurus) supplicate supply Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language