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.
The trains are set to be removed sometime next year, and while there is no rush, they have been decommissioned and will not roll again. John Shumway, CBS News, 10 Dec. 2025 The Upper Midwest Environmental Sciences Center in La Crosse, the National Wildlife Health Center in Madison and the Great Lakes Science Center in Ann Arbor, Michigan — which includes a biological research station in Ashland — appear on the list of 17 facilities that USGS would decommission. Madeline Heim, jsonline.com, 8 Dec. 2025 Until there’s a place to send them, SONGS will not be considered fully decommissioned. Rob Nikolewski, San Diego Union-Tribune, 1 Dec. 2025 The Navy has not had a frigate in its fleet since the USS Simpson was decommissioned in 2015. Brad Lendon, CNN Money, 26 Nov. 2025 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 17 Dec. 2025.

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
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