turn off

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1. Used other than figuratively or idiomatically: see turn, off. · He turned off from me and faced the far wall.
2. To power down, to switch off, to put out of operation, to deactivate (an appliance, light, mechanism, functionality etc.). (transitive) · Turn off the machine and unplug it when you leave.· In some people, this gene has been turned off.
3. To deactivate a heat source cooking a particular item. (transitive) · You can turn off the green beans now.
4. To become deactivated; to become powered down. (intransitive, transitive) · My computer turned off!
5. To rotate a tap or valve so as to interrupt the outflow of liquid or gas. (transitive) · Remember to turn the tap off once you've finished so you don't waste water.
6. To bore, repulse, disgust, or discourage (someone). (transitive) · That book's plot was so predictable, it turned me off.· Cigarette smoking really turns me off.
7. To leave a road; to exit a highway or other main road. (intransitive) · You'll need to turn off before we get to the county line.· Turn off at the next exit so we can have lunch.
8. To avert; to stop (something). (dated, transitive)