گزارش خطا در معنی کلمه 'stiffen up'

1 general:: Phrase(s): stiffen something up to make something rigid or tense. • He added a little starch to the rinse water to stiffen his collars up a bit. • The cold draft has stiffened up my neck.

2 general:: Phrase(s): stiffen up to become stiff. • The bread dough stiffened up as it got cold. • My knees began to stiffen up after I sat still for an hour.