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

Definition of decommission

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 Sanders will soon be decommissioned by the state and officially sworn in as chief of the Jeffersontown Police Department. Ben Tobin, The Courier-Journal, "Kentucky State Police commissioner to take over Jeffersontown Police Department," 20 Nov. 2019 The ship was decommissioned by the U.S. Coast Guard in May 2003 and served as a museum in Port Huron until 2011. Christopher Harress |, al, "Historic U.S. Coast Guard ship to be sold on steps of Mobile courthouse after bills not paid," 20 Nov. 2019 Holtec International, a New Jersey company that specializes in storing and transporting nuclear waste, is decommissioning the plant., "The US Nuclear Regulatory Commission said the company decommissioning Pilgrim Nuclear Power Station can alter its emergency plans now that the Plymouth plant has ceased operations.," 6 Nov. 2019 The Department of Energy and contractors are decommissioning the former Portsmouth Gaseous Diffusion Plant, a facility that between 1954 and 2001 enriched uranium for the nation’s nuclear arsenal and for commercial nuclear reactors. Sarah Brookbank,, "Parts of Pike County near former enrichment plant to be tested for radiological contaminants," 18 Oct. 2019 The satellite will be decommissioned on October 10. David Grossman, Popular Mechanics, "Requiem for a Climate Change Satellite, Decommissioned After 11 Years," 6 Oct. 2019 The Zyp Bikeshare program, which came to Birmingham in October 2015, will be decommissioned at the end of this year. Anna Beahm |, al, "Zyp bikes to be replaced with electric scooters, pedal-assist bikes," 3 Oct. 2019 Several pathways in the woods near Liberty Reservoir are being decommissioned, cutting them off from the public. Jon Kelvey,, "Liberty Reservoir fire roads won’t be maintained or open to public after Baltimore decision; residents object," 16 Aug. 2019 Russia was decommissioning a whole bunch of ICBMs [intercontinental ballistic missiles]. Jeffrey Kluger, Time, "Elon Musk Told Us Why He Thinks We Can Land on the Moon in ‘Less Than 2 Years’," 18 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decommission.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of decommission

1922, in the meaning defined above

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Time Traveler for decommission

Time Traveler

The first known use of decommission was in 1922

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Statistics for decommission

Last Updated

5 Dec 2019

Cite this Entry

“Decommission.” The Dictionary, Merriam-Webster Inc., Accessed 8 December 2019.

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More Definitions for decommission


How to pronounce decommission (audio)

English Language Learners Definition of decommission

: to officially stop using (a ship, weapon, dam, etc.) : to remove (something) from service

More from Merriam-Webster on decommission

Rhyming Dictionary: Words that rhyme with decommission

Nglish: Translation of decommission for Spanish Speakers

Comments on decommission

What made you want to look up decommission? Please tell us where you read or heard it (including the quote, if possible).


to constrict the range or activity of

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