Definition of "decommission" in English

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.

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

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

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

   • The state highway was decommissioned and reverted to local control.