decommission

verb

de·​com·​mis·​sion ˌdē-kə-ˈmi-shən How to pronounce decommission (audio)
decommissioned; decommissioning; decommissions

transitive verb

: to remove (something, such as a ship or a nuclear power plant) from service

Examples of decommission in a Sentence

Several military bases are scheduled to be decommissioned. The government is decommissioning the nuclear power plant.
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.
If a data center is decommissioned and the building is set to become something else, the data center’s owner would be required to remove all obsolete equipment like chillers and generators from the site. R. Christian Smith, Chicago Tribune, 19 Feb. 2026 The selection is a big deal for Vast and for NASA, which wants private companies to take the reins from the ISS when it's decommissioned in 2030. Mike Wall, Space.com, 16 Feb. 2026 Five international space agencies, including NASA, and more than a dozen countries have contributed to the assembly of the space station, which is scheduled to be decommissioned in 2030. Rodney Ho, AJC.com, 11 Feb. 2026 Milan’s San Siro Stadium—the city’s landmark sporting venue that opened a century ago this year (and which is set to be decommissioned after these Olympic Games)—was at overflow capacity. Nick Remsen, Vogue, 6 Feb. 2026 See All Example Sentences for decommission

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of decommission was in 1922

Browse Nearby Words

Cite this Entry

“Decommission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decommission. Accessed 22 Feb. 2026.

Kids Definition

decommission

verb
de·​com·​mis·​sion ˌdē-kə-ˈmish-ən How to pronounce decommission (audio)
: to remove (as a ship) from use or service

More from Merriam-Webster on decommission

Last Updated: - Updated example sentences
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