turn off

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See also: turnoff and turn-off



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turn off (third-person singular simple present turns off, present participle turning off, simple past and past participle turned off)

  1. (transitive, obsolete) To dismiss; to fire.
    • 1789, John Moore, Zeluco, Valancourt, published 2008, page 273:
      [H]e came to this country in the service of an English gentleman, whom he was obliged to quit through the malice of the valet de chambre, who taking advantage of the young man's being overtaken with liquor on the last St.Andrew's day, turned him off, on the pretext of his being an habitual drunkard.
  2. (transitive) To power down, to switch off, to put out of operation, to deactivate (an appliance, light, mechanism, functionality etc.).
    • 2006 Feb. 17, Graham Linehan, The IT Crowd, Season 1, Episode 4:
      Hello, IT. Have you tried turning it off and turning it on again? Ok. Well, are you sure that it's plugged in?
    Turn off the machine and unplug it when you leave.
  3. (intransitive, of a machine, etc.) To become deactivated; to become powered down.
    My computer turned off!
  4. (transitive) 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.
  5. (transitive) To repulse, disgust, or discourage (someone).
    Cigarette smoking really turns me off.
    • 2021 December 29, Paul Clifton, “"Crisis" on the West of England line”, in RAIL, number 947, page 35:
      "They are turning people off travelling. And the removal of catering on such a long-distance route is just bonkers."
  6. (intransitive) To leave a road; to exit.
    Turn off at the next exit so we can have lunch.



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