turn off phrasal verb ( see also ↑ turn )
1 . turn something ↔ off to make a machine or piece of electrical equipment such as a television, engine, light etc stop operating by pushing a button, turning a key etc SYN switch off OPP turn on :
Don’t forget to turn the lights off when you leave.
2 . turn something ↔ off to stop the supply of water, gas etc from flowing by turning a handle OPP turn on :
They’ve turned the gas off for a couple of hours.
3 . turn off (something) to leave the road you are travelling on and start travelling on another road
turn off (something) at/near etc
I think we should have turned off at the last exit.
turn off the road/motorway etc
Mark turned off the highway and into Provincetown.
⇨ ↑ turn-off
4 . turn somebody ↔ off to make someone decide they do not like something:
Any prospective buyer will be turned off by the sight of rotting wood.
⇨ ↑ turn-off
5 . turn somebody ↔ off to make someone feel that they are not attracted to you in a sexual way OPP turn on :
Men who stink of beer really turn me off.
⇨ ↑ turn-off