てんかだいいち 天下第一 LinksSentence search for 天下第一Sentence search for てんかだいいちKanji details for 天, 下, 第 and 一Edit in JMdict Noun, Noun which may take the genitive case particle 'no'1. the best in the land; the best of its kind in the country; par excellence in the whole country Discussions Log in to talk about this word.