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.
第一声だいいっせい Common Noun English jmdict 1 noun (common) (futsuumeishi) first words said (e.g. when meeting someone);first thing out of one's mouth しかし、私たちが口にする第一声は「こんにちは」だ。 But the first thing we say is "hello." 2 noun (common) (futsuumeishi) first speech;inaugural address 3 noun (common) (futsuumeishi) linguistics first tone (in Chinese);level tone