decommission

verb

1. To take out of service or to render unusable.

   “They decommissioned the ship after the accident.”

   “The Army decommissioned the Sherman tank by filling the turret with cement.”

   “By July 1988, when NRC [the Nuclear Regulatory Commission] began requiring licensees to provide specific assurances that funds would be available to decommission their plants, 114 plants were already licensed to operate. At that time, NRC required licensees to provide "reasonable assurance" that sufficient funds would be available to decommission their nuclear power plants.”

   “The failure of loyalist paramilitaries to decommission weapons was, therefore, less about ideology than about more practical considerations. There were several other reasons why loyalist paramilitaries were not prepared to decommission weapons. Since republicans had not stated that the war was over loyalists saw no reason to unilaterally decommission.”

   “There are a large number of nuclear and radiological facilities, including legacy sites worldwide, that have been decommissioned successfully, are either currently in an active decommissioning phrase, or will require decommissioning in the near future[…].”

2. (transitive)To remove or revoke the commission of.

   “After his arrest, the officer was decommissioned from the police force.”

   “The family claimed proudly that he [James Clay, Jr.] was the last Confederate officer decommissioned at the end of the war.”

3. (transitive)To remove or revoke the formal designation of.

   “The state highway was decommissioned and reverted to local control.”

   “R-23 (Submarine No. 100) was laid down 25 April 1917 by the Lake Torpedo Boat Co., Bridgeport, Conn.; launched 5 November 1918; sponsored by Miss Ruth Jane Harris; and commissioned 23 October 1919, Lt. David R. Lee in command. […] R-23 was decommissioned 24 April 1925 and was berthed at League Island until struck from the Navy list 9 May 1930 and sold for scrap in July of the same year.”

   “Proposal is to decommission 0.75 miles of this route that exists on the ground; this portion of the road does not access important features, dispersed sites, or firewood; […]”