Breadcrumb Home > Dictionary > Index S sustenance: Meaning and Definition of Find definitions for: sus•te•nance Pronunciation: (sus'tu-nuns), [key] — n. means of sustaining life; nourishment. means of livelihood. the process of sustaining. the state of being sustained. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sustenance (Thesaurus) sustaining program sustentacular TrendingHere are the facts and trivia that people are buzzing about. The Book of Philippians: Summary Current Events This Week: May 2023 Preamble of the United Nations Charter Queen Victoria Books of the Bible: New Testament Books in Order The 88 Recognized Constellations ✖ Related Content Daily Word Quiz: panache Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language