じゅうごにち 15日 Common word LinksSentence search for 15日Sentence search for じゅうごにちSentence search for 十五日Sentence search for 一五日Kanji details for 日Edit in JMdict Noun1. 15th day of the monthNoun2. 15 daysOther forms十五日 【じゅうごにち】、一五日 【じゅうごにち】 Discussions Log in to talk about this word.