shut-off
nounUK /ˈʃʌt.ɒf/
US /ˈʃʌt.ɑːf/
A shut-off is when you stop something, like water or a machine, from working.
The plumber turned the shut-off valve to stop the water leak.
OTHER MEANINGS
2. A device that stops the flow of water, gas, or electricity.
Find the gas shut-off before you leave the house.
3. The act of closing a business or factory for a time.
The factory shut-off lasted two weeks.
4. A person who does not join in or talk with others.
He stayed a shut-off at the party and said nothing.