Breadcrumb Home > Thesaurus > O Synonyms of overcoat Find synonyms for: Noun 1. greatcoat, overcoat, topcoat, coat usage: a heavy coat worn over clothes in winter 2. overcoat, overcoating, coating, coat usage: an additional protective coating (as of paint or varnish) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of overcoat (Dictionary) 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: tintinnabulation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language