でんかほうとう 伝家の宝刀 LinksSentence search for 伝家の宝刀Sentence search for でんかのほうとうSentence search for 殿下の宝刀Kanji details for 伝, 家, 宝 and 刀Edit in JMdict Expressions (phrases, clauses, etc.), Noun1. one's last resort; trump cardIdiomatic expressionExpressions (phrases, clauses, etc.), Noun2. treasured family swordorig. meaningOther forms殿下の宝刀 【でんかのほうとう】Notes殿下の宝刀: Irregular kanji usage. Discussions Log in to talk about this word.