Breadcrumb Home > Thesaurus > C Synonyms of coign Find synonyms for: Noun 1. quoin, coign, coigne, wedge usage: expandable metal or wooden wedge used by printers to lock up a form within a chase 2. quoin, coign, coigne, keystone, key, headstone usage: the keystone of an arch WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of coign (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: terraincognita Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language