pre·​ven·​tion | \ pri-ˈven(t)-shən How to pronounce prevention (audio) \

Definition of prevention

: the act of preventing or hindering

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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 As the vaccines are endorsed, financed, and rolled out, other prevention strategies are key for controlling the illness. Melody Schreiber, The New Republic, 11 Oct. 2021 The camps used multiple prevention strategies including masks, regular testing, podding, physical distancing and hand hygiene, and had a 93% vaccination rate among those who were eligible. Travis Caldwell, CNN, 3 Oct. 2021 The red pills could plug a yawning gap between prevention strategies — masking, social distancing and vaccination — and currently available treatments, all of which require skilled medical care and costly facilities to deliver. Karen Kaplan Science And Medicine Editor, Los Angeles Times, 1 Oct. 2021 The sergeant will focus on retail theft from the patrol side, deploying officers and working with retailers on prevention strategies. Megan Cassidy, San Francisco Chronicle, 22 Sep. 2021 Additionally, Lani is urging people to get vaccinated and follow other COVID-19 prevention strategies. Korin Miller,, 17 Sep. 2021 In those cases, the agency recommends layering multiple other prevention strategies., 17 Sep. 2021 Experts have cited this data to advocate for multi-pronged and layered prevention strategies for nursing homes, including vaccinations of staff members, residents and visitors, contractors, as well as appropriate testing and possible booster shots. Soo Rin Kim And Jay Bhatt, ABC News, 12 Sep. 2021 Because children under 12 cannot yet receive the vaccine, the CDC recommends schools utilize several prevention strategies and continue to implement social distancing, testing and routine hand washing in addition to masking. Caitlin O'kane, CBS News, 3 Sep. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'prevention.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of prevention

15th century, in the meaning defined above

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Time Traveler for prevention

Time Traveler

The first known use of prevention was in the 15th century

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Dictionary Entries Near prevention




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Statistics for prevention

Last Updated

18 Oct 2021

Cite this Entry

“Prevention.” Dictionary, Merriam-Webster, Accessed 26 Oct. 2021.

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More Definitions for prevention



English Language Learners Definition of prevention

: the act or practice of stopping something bad from happening : the act of preventing something


pre·​ven·​tion | \ pri-ˈven-shən How to pronounce prevention (audio) \

Kids Definition of prevention

: the act or practice of keeping something from happening the prevention of fires

More from Merriam-Webster on prevention

Nglish: Translation of prevention for Spanish Speakers

Britannica English: Translation of prevention for Arabic Speakers


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