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.
Senate Bill 26-141 would create a wildlife collision prevention fund in Colorado. Olivia Young, CBS News, 20 Mar. 2026 Being proactive about prevention is also key. Helen Carefoot, Flow Space, 20 Mar. 2026 Apart from search and rescue, these high-endurance drones could prove beneficial for large-scale environmental monitoring and disaster prevention. Mrigakshi Dixit, Interesting Engineering, 19 Mar. 2026 The Journal Sentinel also consulted with officials from school districts, state agencies, youth justice courts, corrections agencies, law enforcement teams, violence prevention groups and de-radicalization organizations. Natalie Eilbert, jsonline.com, 19 Mar. 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 22 Mar. 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

More from Merriam-Webster on prevention

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