Level 5 · word 7,702 of 20,000
stiffen
/ˈstɪfən/
American
- v. 使变硬, 变硬, 加重
- Definition
- v. to make or become stiff, hard, or more severe
- Example
- Her muscles began to stiffen after sitting still for hours.
- 久坐不动后，她的肌肉开始变得僵硬。