- to end or revoke the commission of
- to take (a ship, nuclear power plant, etc.) out of service
transitive verbde·com·mis·sioned, de·com·mis·sion·ing, de·com·mis·sions
(third-person singular simple present decommissions, present participle decommissioning, simple past and past participle decommissioned)
- 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.
- To remove or revoke a commission.
- After his arrest, the officer was decommissioned from the police force.
- To remove or revoke a formal designation.
- The state highway was decommissioned and reverted to local control.
de- + commission