n.

1. 日光；白晝[U]
   It looks different in daylight.

   它在日光下看上去就不一樣。

2. 黎明[U]
   He was up at daylight.

   他黎明即起。

3. 公開[U]
4. 【俚】知覺，神智[P]

n.

1. the natural light of the day.
   ▸dawn.
2. visible distance between one person or thing and another.