Breadcrumb Home > Dictionary > Index S slacks: Meaning and Definition of Find definitions for: slacks Pronunciation: (slaks), [key] — n. (used with a pl. v.) men's or women's trousers for informal wear. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: slacks (Thesaurus) slack-jawed slack suit TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: genome Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language