Definition of "turn off" in English

Verb

To dismiss; to fire.
To power down, to switch off, to put out of operation, to deactivate (an appliance, light, mechanism, functionality etc.).
- Turn off the machine and unplug it when you leave.
To become deactivated; to become powered down.
- My computer turned off!
To rotate a tap or valve so as to interrupt the outflow of liquid or gas.
- Remember to turn the tap off once you've finished so you don't waste water.
To repulse, disgust, or discourage (someone).
- Cigarette smoking really turns me off.
To leave a road; to exit.
- Turn off at the next exit so we can have lunch.
To turn out; to produce.
To execute by hanging.