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.
The agency’s authority to investigate stems from Senate Bill 553, which was amended to broaden the scope of employers, including law enforcement agencies, to maintain workplace violence prevention plans. Jake Goodrick, Sacbee.com, 9 Jan. 2026 The military use case aligns with Reconcept’s emphasis on prevention. Aamir Khollam, Interesting Engineering, 9 Jan. 2026 Most importantly, these assessments help institutions identify gaps in prevention, crisis communications and emergency response before a crisis occurs. Rick Pozniak, Boston Herald, 9 Jan. 2026 That could include initial results from a phase three trial on a flu prevention product from Cidara Therapeutics, which the company acquired in November. Annika Kim Constantino, CNBC, 9 Jan. 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

Browse Nearby Words

Cite this Entry

“Prevention.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prevention. Accessed 16 Jan. 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

Last Updated: - Updated example sentences
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