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.
Supplanted by the Interstate Highway System, it was officially decommissioned in 1985. David Allan, CNN Money, 3 Mar. 2026 The Superior Court discovered the missing reports in June 2025 while implementing a new case management system and decommissioning its old one. Jason Henry, Daily News, 1 Mar. 2026 One day earlier, the Navy will decommission the USS Germantown, a 40-year-old Whidbey Island-class dock landing ship that transports and delivers Marines to various parts of the world, notably war zones. Gary Robbins, San Diego Union-Tribune, 28 Feb. 2026 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 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 13 Mar. 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

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