Synonyms of prevention
: 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 team also developed a risk-prevention and emergency-response system for ultra-deep-water drilling. — Sujita Sinha, Interesting Engineering, 28 Sep. 2026 Cut back catmint, hostas, and salvia in fall for tidier gardens, pest prevention, and improved flowering. — Lauren Landers, Better Homes & Gardens, 28 Sep. 2026 The second annual event benefits the organization’s efforts to ensure that all people living with HIV/AIDS have access to quality housing, healthcare, HIV prevention, and treatment. — Rolling Stone, 28 Sep. 2026 Yet elsewhere in the book Hirschman acknowledged that breaking from the team, however courageous, can have perverse consequences, especially in organizations responsible for the provision of public goods like education and crime prevention. — Eyal Press, New Yorker, 28 Sep. 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 4 Oct. 2026.

Kids Definition

prevention

noun
: the act or practice of preventing something
the prevention of fires
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