verb

decommission

to take out of service, to dismantle, to shut down

They will decommission the old nuclear power plant.

They will decommission the old nuclear power plant.

The warship was decommissioned after 50 years of service.

The warship was decommissioned after 50 years of service.

((sth.)) to take (sth.) out of official service They will decommission the old nuclear power plant.

Synonyms: dismantle, retire, shut down

From the prefix 'de-' (remove) and 'commission' (an official instruction). It literally means to remove the official status or instruction.

Think of 'de-commission' as 'un-commissioning' something, like taking away its official job or purpose.

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