prevention

noun

pre·​ven·​tion pri-ˈven(t)-shən How to pronounce prevention (audio)
: 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.
In 2020, the Federal Trade Commission issued a warning letter to his company, Revive & Rally Health Lounge, for marketing IV bags filled with vitamin C as a coronavirus prevention product. Kansas City Star, 18 Sep. 2025 Information includes the prevalence of rabies, whether a robust surveillance and prevention program is in place, and whether treatment is readily available if exposure occurs. Katia Hetter, CNN Money, 18 Sep. 2025 The president has cut millions in aid for flood prevention and threatened to withhold LA wildfire aid unless the state adopted voter ID laws. David Lightman, Sacbee.com, 18 Sep. 2025 And long-acting HIV treatments and prevention options that replace daily pills can drive AIDS deaths to single digits. Bill Gates, Time, 18 Sep. 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 23 Sep. 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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