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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.

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Chinese leader Xi Jinping has said that young people should stiffen their spines and embrace hardship.

From The Wall Street Journal Apr. 28, 2026

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 involves the buildup of dense, fibrous tissue around the tumor, made up of cells and proteins that stiffen and inflame the area.

From Science Daily Jan. 30, 2026

Calling the eradication of extortion “one of the great challenges” facing Mexico, Sheinbaum pledged to bolster enforcement, stiffen penalties and increase safeguards for anyone receiving threats.

From Los Angeles Times Dec. 16, 2025

I felt her stiffen away when 1 touched her.

From "A Farewell To Arms" by Ernest Hemingway

Once the pH returns to normal, the tissue stiffens again and locks into its new form.

From Science Daily May 28, 2026

The biggest reason is that our maximum heart rate slows with age, and the heart muscle stiffens, reducing its pumping effectiveness.

From Barron's May 23, 2026

More than 13% of Americans 75 and older have the condition, in which the aortic valve stiffens and narrows.

From The Wall Street Journal Apr. 25, 2026

It's not just in majors that Scheffler's resolve stiffens on a Sunday.

From BBC Jul. 19, 2025

My body stiffens as I click through every possible message location again.

From "South of Somewhere" by Kalena Miller

Others argued the particles stiffened the surrounding material like glue.

From Science Daily May 13, 2026

They reckon it may have stiffened the resolve of the German public and discouraged rebels within the dying Nazi regime.

From MarketWatch Mar. 12, 2026

Johnson’s move appears to have stiffened investors’ spines.

From Barron's Feb. 11, 2026

Drive up the A34 road from Alfred the Great’s capital at Winchester to Oxford and you trace the forgotten spine of an older England, with stretches stiffened by Roman roads.

From The Wall Street Journal Jan. 23, 2026

Her dark hazel eyes clouded while she talked, and her face stiffened.

From "Homecoming" by Cynthia Voigt

It’s hard to imagine a greater accomplishment than to achieve peace while stiffening the sinews of deterrence.

From The Wall Street Journal Mar. 1, 2026

These findings further support the idea that chronic inflammation drives tissue stiffening.

From Science Daily Jan. 24, 2026

No wonder OpenAI’s Sam Altman issued a “code red” alert to employees urging them to step up the pace of chatbot development in the face of stiffening competition from the likes of Google’s Gemini.

From Barron's Dec. 3, 2025

"They keep me fit and keep me moving, stop me stiffening up - I'm very determined, I won't give up," she says.

From BBC Oct. 21, 2025

The ice ball began to melt, trickling freezing water into his legs, stiffening the joints.

From "The Contender" by Robert Lipsyte




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