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prevention

American  
[pri-ven-shuhn] / prɪˈvɛn ʃən /

noun

  1. the act of preventing; effectual hindrance.

  2. a preventive.

    This serum is a prevention against disease.


prevention British  
/ prɪˈvɛnʃən /

noun

  1. the act of preventing

  2. a hindrance, obstacle, or impediment

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nonprevention noun

Etymology

Origin of prevention

1520–30; < Late Latin praeventiōn- (stem of praeventiō ) a forestalling. See prevent, -ion

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Autism researchers and advocates are working toward developing better screening tools, safety plans, therapies and prevention strategies.

From Los Angeles Times • Apr. 1, 2026

"These results demonstrate the benefit of intensive lowering cholesterol earlier and should change how we think about the prevention of heart attacks, strokes, and heart disease in patients without known significant atherosclerosis."

From Science Daily • Mar. 30, 2026

Among Novartis’s upcoming phase 3 trials, Bank of America is most focused on remibrutinib in relapse-remitting multiple sclerosis and pelacarsen in secondary prevention of cardiovascular events, the analysts say.

From The Wall Street Journal • Mar. 23, 2026

Their prevention of future deaths report - issued by a coroner when an investigation reveals action should be taken to prevent further, avoidable deaths - raised concerns in his case.

From BBC • Mar. 22, 2026

There would be a special assembly with the fire chief and the mayor there, and the newspaper would send someone to take pictures and interview kids about fire prevention.

From "The Best School Year Ever" by Barbara Robinson