かお 顔がほころぶ Show inflections LinksSentence search for 顔がほころぶSentence search for かおがほころぶSentence search for 顔が綻ぶKanji details for 顔Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'bu' ending1. to break into a smile; to smile broadly; to beamOther forms顔が綻ぶ 【かおがほころぶ】 Discussions Log in to talk about this word.