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Definitions

stiffen

[stif-uhn] / ˈstɪf ən /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She has also vowed to stiffen prison sentences and to impose a state of emergency in areas worst hit by crime.

From Barron's • Feb. 1, 2026

This leads the muscles to weaken and stiffen over time and ultimately impacts how you walk, talk, eat and breathe.

From BBC • Dec. 4, 2025

In people with Alzheimer's, Aβ accumulates and causes arteries to stiffen, slowing the flow of fluids between brain tissue and cerebrospinal fluid.

From Science Daily • Nov. 11, 2025

Redick looked as if he might stiffen under the postseason spotlight, the rookie coach uncharacteristically a man of few words and no smiles in his pregame news conference.

From Los Angeles Times • Apr. 20, 2025

Out of the corner of my eye I see Tris stiffen, chafing against the reminder that our lives have been on camera.

From "Allegiant" by Veronica Roth