containment

noun

con·​tain·​ment kən-ˈtān-mənt How to pronounce containment (audio)
Synonyms of containmentnext
1
: the act, process, or means of keeping something within limits
the containment of health costs
2
: the policy, process, or result of preventing the expansion of a hostile power or ideology

Examples of containment in a Sentence

The company's hazardous waste containment plan is being reviewed. The government needs to adopt a containment strategy.
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.
Fernandez also credited efforts to build and strengthen containment lines around the fire perimeter. ABC News, 4 Apr. 2026 Otzma Yehudit lawmaker Tzvika Foghel, who chairs the National Security Committee and advanced the bill through the committee under his leadership, told Fox News Digital that Israelis are fed up with policies of containment and compromise. Benjamin Weinthal , Amelie Botbol, FOXNews.com, 1 Apr. 2026 To address the challenge, officials have begun looking for a permanent repository that can safely isolate radioactive material deep underground, typically at depths of at least 980 feet (300 meters) for long-term containment. Georgina Jedikovska, Interesting Engineering, 30 Mar. 2026 But cost containment cannot come at the expense of those already most at risk. James Hart, Hartford Courant, 30 Mar. 2026 See All Example Sentences for containment

Word History

Etymology

contain + -ment

First Known Use

1655, in the meaning defined at sense 1

Time Traveler
The first known use of containment was in 1655

Browse Nearby Words

Cite this Entry

“Containment.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/containment. Accessed 5 Apr. 2026.

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