to move slowly nearer to somebody, usually from behind, without being seen or heard
Ví dụ:
- Don't creep up on me like that!
- The cat quietly crept up on the pigeon.
to begin to affect somebody, especially before they realize it
Ví dụ:
- Tiredness can easily creep up on you while you're driving.
- Fatigue was creeping up on him.