
number one; first; first place
best; most
game; round; bout
as a test; as an experiment; by way of experiment; by way of trial; tentatively
song (e.g. in noh); piece
あの人がクラスで一番足が速かったのを覚えている。
I remember that person was the fastest runner in the class.
この中で一番高いのはどれ?
Which is the most expensive?
一番大切なのは健康です。
The most important thing is health.