stiffen

verb

ˈsti-fən How to pronounce stiffen (audio)
Definition of stiffennext
as in to strengthen
to make more harsh, uncompromising, or severe plans to further stiffen the already onerous requirements for admission to the elite military unit

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of stiffen The Chiefs’ defense stiffened and Indy faced a fourth-and-8 from the 15-yard line. — Pete Grathoff, Kansas City Star, 21 Sep. 2026 Over time, smoking can narrow and stiffen blood vessels and accelerate cardiovascular disease. — Katia Hetter, CNN Money, 16 Sep. 2026 But after a quick touchdown drive to take a 34-27 lead, the Oregon defense stiffened, and closed out the win with back-to-back stops. — Ian Miller Outkick, FOXNews.com, 6 Sep. 2026 Bile rose in Evie’s throat and her body stiffened under his touch. — Literary Hub, 2 Sep. 2026 See All Example Sentences for stiffen
Recent Examples of Synonyms for stiffen
strengthen
Verb
  • The goal is to strengthen leadership skills and explore key topics, including entrepreneurship, innovation, change management, communication and self-promotion.
    — Georg Szalai, HollywoodReporter, 21 Oct. 2026
  • Low pressure strengthening off the Carolina coast will gradually move northward, while high pressure remains anchored to our north.
    — Grant Gilmore, CBS News, 21 Oct. 2026
Definition of strengthen

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stiffed
stiffen
stiffened
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Cite this Entry

“Stiffen.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/stiffen. Accessed 26 Oct. 2026.

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