prevention

noun

pre·​ven·​tion pri-ˈven(t)-shən How to pronounce prevention (audio)
Synonyms of preventionnext
: the act of preventing or hindering

Examples of prevention in a Sentence

Exercise and diet play a role in the prevention of heart disease. good crowd control is crucial to the prevention of riots
Recent Examples on the Web
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.
On-site clinicians, rapid assessments, suicide prevention protocols, and alternatives to isolation help reduce assaults on staff and self-harm by inmates. Charlotte Observer, 20 Feb. 2026 His experience in internal medicine, longevity medicine, obesity medicine, and frontline pandemic care shaped CR8 Health’s emphasis on prevention, metabolic health, and sustainable results. Jason Phillips, USA Today, 20 Feb. 2026 House State Planning and Community Affairs Committee meets to discuss House Bill 689, which would establish a homelessness prevention program. Adam Beam, AJC.com, 19 Feb. 2026 This includes efforts to defeat candidates who advocate for comprehensive regulation covering workforce impacts, children’s safety, data protection, and deepfake prevention. Los Angeles Times, 19 Feb. 2026 See All Example Sentences for prevention

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of prevention was in the 15th century

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Cite this Entry

“Prevention.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prevention. Accessed 28 Feb. 2026.

Kids Definition

prevention

noun
pre·​ven·​tion pri-ˈven-chən How to pronounce prevention (audio)
: the act or practice of preventing something
the prevention of fires

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