Breadcrumb Home > Dictionary > Index D dassn't: Meaning and Definition of Find definitions for: dass•n't Pronunciation: (das'unt), [key] — Chiefly Northern U.S. Chiefly Northern U.S. contraction of dare not. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Dassin dast 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: eponymous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language