日本にっぽん刀とうTop 15000MeaningsNoun1. Japanese sword (usu. single-edged and curved); Japanese bladed weaponOther readings日本にほん刀とうKanji used日sun本book刀katanaComposed of日本にっぽんJapanNoun刀とうsword (esp. Japanese single-edged); katana; scalpel; chisel; burin; graver; knife money (knife-shaped commodity money used in ancient China)Noun