第一 (Daiichi) is a Japanese adjectival noun meaning “first, foremost, number one, most important”.
Meanings
- adjectival noun, nounfirst; foremost; number one
- adjectival noun, nounmost important
- adjectival noun, nounbest; greatest; most
- adverbabove all; besides; in any case; to begin with
Examples
健康が第一だ。
Nothing is more important than health.
第一に、彼女は若すぎる。
To begin with, she is too young.
日本は天下第一の国である。
Japan is the best country under the sun.
Sentences from Tatoeba (CC BY 2.0 FR).