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.
All orders have since been lifted after crews announced 100% containment on Saturday afternoon. Dean Fioresi, CBS News, 19 Apr. 2026 The Chernobyl site utilizes a dual-layer containment system to manage the remains of reactor unit 4. Aman Tripathi, Interesting Engineering, 15 Apr. 2026 Despite initial containment measures, oil spread from the dock into the Scheldt River, completely blocking the access route from the port to the North Sea. Glenn Taylor, Footwear News, 10 Apr. 2026 It cannot be adequately assessed or treated within brief admissions designed primarily for acute containment. Liz Koch, STAT, 6 Apr. 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 22 Apr. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster