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.
Devastated, her classmates form a gun violence prevention program at their school. Patrick Ryan, USA Today, 4 Apr. 2026 The fire department says this is about prevention, not enforcement. Carmela Karcher, CBS News, 3 Apr. 2026 Michael Rose is an internist and pediatrician at Johns Hopkins University School of Medicine investigating ways to improve HIV treatment and prevention. Michael Rose, STAT, 3 Apr. 2026 Cora even relayed a story about how former Red Sox captain and current game planning and run prevention coach Jason Varitek got boo’ed by fans after having a tough time catching Tim Wakefield only to be cheered later in the game for hitting a home run. Greg Dudek, Boston Herald, 3 Apr. 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 5 Apr. 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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