coign coiffure • coigue · · · Info · Definitions · Synonyms · Characters · · coign · · Text Latin · · Script 5 · · Length Definitions · · · (noun) expandable metal or wooden wedge used by printers to lock up a form within a chase. Synonyms: quoin, coigne. · · Noun Definition 1 (noun) the keystone of an arch. Synonyms: quoin, coigne. · · Noun Definition 2 Synonyms · · · quoin · · Synonym 1 coigne · · Synonym 2 Characters · · c latin small letter c U+0063 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F