de·​com·​mis·​sion | \ ˌdē-kə-ˈmi-shən \
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

The Queen openly wept when HMY Britannia was decommissioned in 1997. Lauren Hubbard, Town & Country, "The Story Behind the Royal Family's Yacht, Britannia," 30 Sep. 2018 Often referred to as the last royal yacht, the Britannia was decommissioned in 1997, and despite some efforts, there are no signs of a new one in the near future. Lauren Hubbard, Town & Country, "The Story Behind the Royal Family's Yacht, Britannia," 30 Sep. 2018 An agreement announced Tuesday to sell the country's oldest nuclear power plant could result in the plant's being decommissioned in the next eight years, decades earlier than required by industry protocols. Fox News, "Sale could speed decommissioning of oldest nuclear plant," 31 July 2018 China's Tiangong-1 space station has been orbiting the planet for about 5 years now, but recently it was decommissioned and the Chinese astronauts returned to the surface. Avery Thompson, Popular Mechanics, "China Confirms Its Space Station Is Falling Back to Earth," 19 Sep. 2016 The other is Arlington, Texas, which decommissioned its sole bus last year citing low ridership (only 200 riders per day). Aditi Shrikant, Vox, "As bus ridership continues to decrease, cities are turning to creative alternatives.," 5 Nov. 2018 Scheduled for the South Battery Triangle, the celebration will offer bird talks and walks — the terns nest on the island’s decommissioned piers — as well as children’s activities, like making tern masks, oyster shell necklaces and feather crowns. Laurel Graeber, New York Times, "9 Things to Do With Your Kids in N.Y.C. This Weekend," 12 July 2018 The reservoir, built in 1859 to accommodate the city’s surging population, has been an eyesore since it was decommissioned in 1940, following the construction of the Lombard Reservoir just a few blocks away. Dominic Fracassa, San Francisco Chronicle, "Russian Hill park expected on abandoned reservoir," 14 Mar. 2018 The tunnels leading up to it have been collapsed several decades ago when it was decommissioned. Wes Siler, Outside Online, "Doing It for the ‘Gram Turns Deadly," 9 July 2018

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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Last Updated

3 Jan 2019

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The first known use of decommission was in 1922

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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

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