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.
Supervisor Janice Hahn has taken up the issue, backing a March motion directing county departments to report back on jail deaths and overdose prevention. Gavin J. Quinton, Los Angeles Times, 19 June 2026 Medical experts and substance abuse prevention advocates say the vaccine could eventually become another tool to help combat a crisis that continues to claim tens of thousands of lives each year. Gino Vicci, CBS News, 18 June 2026 This may help explain why healthcare spending in the United States remains so concentrated around acute intervention rather than longitudinal disease prevention. Jeffrey Wessler, Forbes.com, 18 June 2026 Second mistake is failure to have ALL pets in the household on flea prevention. Alora Bopray, USA Today, 18 June 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 20 Jun. 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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