第だい Common prefix English jmdict 1 prefix prefix for forming ordinal numbers まず第1にこの仕事を終えなくてはいけない。 I must finish this work first.
第一だいいち Common Noun Noun family or surname given name or forename, gender not specified English jmdict 1 nouns which may take the genitive case particle 'no'noun (common) (futsuumeishi) first;foremost;number one まず、第一に名前を書きなさい。 Write your name, first of all. 2 nouns which may take the genitive case particle 'no'noun (common) (futsuumeishi) most important 健康が第一だ。 Nothing is more important than health. 3 nouns which may take the genitive case particle 'no'noun (common) (futsuumeishi) best;greatest;most 日本は天下第一の国である。 Japan is the best country under the sun. 4 adverb (fukushi) above all;besides;in any case;to begin with English jmnedict 1 Daiichi Other forms 第1 【だいいち】