閏 うるう Meanings Noun, の-adjective embolism; intercalation Kanji 閏 intercalation; illegitimate throne. Read as うるう. Words containing 閏 閏年 (うるうどし) leap year 閏月 (うるうづき) intercalary month (lunar calendar) 閏秒 (うるうびょう) leap second And 1 more. Jinuma: Japanese Dictionary · Word lists