うるうび 閏日 LinksSentence search for 閏日Sentence search for うるうびSentence search for うるう日Sentence search for じゅんじつKanji details for 閏 and 日Edit in JMdict Noun1. leap dayOther formsうるう日 【うるうび】、閏日 【じゅんじつ】 Discussions Log in to talk about this word.