Wiktionary
vb. (context transitive English) to turn a switch to the "off" position in order to stop or disable a device
WordNet
Wikipedia
Switch Off is a short film directed by Anoop Gangadharan. It is the first short film which features only gadgets and was selected for Limca Book of Records.
Usage examples of "switch off".
I handed down the battens and bottle-screw, checked that the two water drums were conveniently to hand, softly told Marie to switch off the torch, eased the hatch-cover open a few inches and cautiously felt for the bolt.
Then switch off the cove lights, then turn off the water-in that order.
Then switch off the cove lights, then turn off the water - in that order.
You couldn't hear anything but voices over your radio and you could reach down and switch off that.
As they left their joint office, Strong, always penny conscious, was careful to switch off the light.
Here's what you do: After I switch off, you call EXECUTIVE and make a transcript of everything you can remember of what he said about gravitational theory.
The car was a late-model Chevy with a lot of smartass electronic features he couldn't switch off.
When number five reaches forty-five percent switch off its starter and switch on three, six.