/ Dictionary / Index S St.-Eustache: Meaning and Definition of Find definitions for: St.-Eus•tache Pronunciation: (Fr. san-tœs-tash'), [key] — n. a town in S Quebec, in E Canada. 29,716. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Steubenville St. Eustatius Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language