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.
Strictly Necessary Cookies Always Active These Cookies and SDKs are required for Service functionality, including security and fraud prevention, and to enable any purchasing capabilities. Rohan Nadkarni, NBC news, 18 Dec. 2025 Nick was charged with first-degree murder and appeared in court on Wednesday wearing a blue suicide-prevention gown and a waist shackle. Emily Zemler, Rolling Stone, 18 Dec. 2025 Regular cleanings and checkups are also important for prevention. Khloe Quill, FOXNews.com, 18 Dec. 2025 That’s according to data collected by ZFLO Technologies, a loss prevention innovator and e-commerce research company. Hannah Poukish, Sacbee.com, 18 Dec. 2025 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 19 Dec. 2025.

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

Last Updated: - Updated example sentences
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