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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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Depending on the situation, the material can bend, buckle, or stiffen in different ways, all without electronics, sensors, or active control systems.

From Science Daily Jun. 11, 2026

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

From The Wall Street Journal Apr. 28, 2026

As these weaken and stiffen over time it can affect walking, talking, eating and breathing.

From BBC Apr. 10, 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

If he let his sword hand stiffen and grow clumsy, it well might be the end of him, he knew.

From "A Clash of Kings" by George R.R. Martin

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

Over time, inflammation can progress to fibrosis and scarring that stiffens the liver.

From Science Daily Mar. 7, 2026

Last year, Alibaba announced a plan to fold food-delivery and online-travel services into its e-commerce unit as competition stiffens in the Chinese market.

From The Wall Street Journal Jan. 29, 2026

As Martin, Charles stiffens himself and keeps his facial expressions generally between neutral and annoyed, though he’s softer than Clunes, less a prisoner of his own body, less abrasive, less otherworldly.

From Los Angeles Times Jan. 4, 2026

His gaze stiffens on mine and his lips fold shut.

From "Red Flags and Butterflies" by Sheryl Azzam

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

Marinello said that could change if countries stiffened the penalties for stealing cultural heritage by calling it cultural terrorism.

From The Wall Street Journal Oct. 20, 2025

The giant Norseman stiffened and fell back into the collapsed spice bin with a final wallop.

From "The Many Assassinations of Samir, the Seller of Dreams" by Daniel Nayeri

Softening rather than stiffening when moving through space requires embracing your body’s natural sway and tiny micro-movements, like an ankle wobbling or knee jiggling.

From Los Angeles Times Aug. 18, 2026

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

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

He said his parents also told him their child had been unwell the night before he was brought to hospital and had been displaying abnormal movements including shaking and stiffening of his limbs.

From BBC Oct. 4, 2024

A fourth try and he had it all but strung— when a stiffening in Odysseus made him check.

From "The Odyssey" by Homer




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