みなぬか 三七日 LinksSentence search for 三七日Sentence search for みなぬかSentence search for みなのかSentence search for さんしちにちKanji details for 三, 七 and 日Edit in JMdict Noun1. 21st day after death; 21st day after birthOther forms三七日 【みなのか】、三七日 【さんしちにち】 Discussions Log in to talk about this word.