Vocabulary What does 閏年 (うるうどし, uruudoshi) mean? 閏年 (うるうどし, uruudoshi) means leap year. Quick factsReadingうるうどしRomajiuruudoshiPart of speechnoun, no-adjective 閏年うるうどしuruudoshileap year1noun · no-adjective leap yearAlso written: うるう年Kanji in this word年year (unit of time)