[ dee-kuh-mish-uh n ]
/ ˌdi kəˈmɪʃ ən /

verb (used with object)

to remove or retire (a ship, airplane, etc.) from active service.
to deactivate; shut down: to decommission a nuclear power plant.

Origin of decommission

First recorded in 1925–30; de- + commission Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for decommission

  • Will Obama decommission the U.S. Army, join the Non-Aligned Movement and invite Robert Mugabe to Camp David?

    How Obama Divides—and Conquers|Michael Fullilove|May 16, 2009|DAILY BEAST
  • Some were building robots that could decommission leaky gas-stations and crater out the toxic soil.

    Makers|Cory Doctorow

British Dictionary definitions for decommission

/ (ˌdiːkəˈmɪʃən) /


(tr) to dismantle or remove from service (a nuclear reactor, weapon, ship, etc which is no longer required)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012