
Stiffen
Physical Change
Describes literal hardening or solidifying of materials or objects, often over time.
Mix the ingredients until they stiffen into dough.
Metaphoric Use
Used figuratively to describe firming up things like plans, positions, or attitudes.
The politician had to stiffen his stance on climate policy.
Body Language
Can indicate a sudden physical response to surprise or discomfort, often involuntary.
His jaw stiffened when he heard the unexpected noise.