てんめいし 天命を知る Show inflections LinksSentence search for 天命を知るSentence search for てんめいをしるKanji details for 天, 命 and 知Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to turn 50; to reach 50 years of age Discussions Log in to talk about this word.