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English definition of “shut (sth) off”

shut (sth) off

phrasal verb with shut     /ʃʌt/ verb [I or T] (shutting, shut, shut)
[T] COMMERCE, PRODUCTION, GOVERNMENT if a supply or process is shut off or someone shuts it off, it stops: The committee has the power to shut off funds for the second phase of the prison construction. We certainly don't want to shut off new ideas.
[I or T] IT, PRODUCTION if a computer or other machine is shut off or someone shuts it off, it stops working: When you are waiting in line in your car, shut the engine off. It looked as if the computer had shut off in the middle of the calculation.
[I or T] PRODUCTION if electricity, gas, etc. shuts off, or someone shuts it off, it stops being supplied: The national power company shut off electricity in hopes of preventing fires. Power shut off in several neighborhoods last night after the storm.
(Definition of shut (sth) off from the Cambridge Business English Dictionary © Cambridge University Press)
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