switch off phrasal verb (
see also switch)
1. to turn off a machine, light, radio etc using a switch
switch something ↔ off
The burglar alarm was switched off. Don’t forget to switch off before you go.2. informal to stop listening to someone:
He just switches off and ignores me.3. to relax for a short time:
Switch off by listening to music. [TahlilGaran] Dictionary of Contemporary English ▲