Breadcrumb Home > Dictionary > Index S sentry: Meaning and Definition of Find definitions for: sen•try Pronunciation: (sen'trē), [key] — pl. -tries. a soldier stationed at a place to stand guard and prevent the passage of unauthorized persons, watch for fires, etc., esp. a sentinel stationed at a pass, gate, opening in a defense work, or the like. a member of a guard or watch. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sentry (Thesaurus) sentinel sentry box TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: parallax Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language