switch on phrasal verb ( see also ↑ switch )
to turn on a machine, light, radio etc using a switch
switch something ↔ on
He switched the torch on.
When a tape is put in the VCR, it switches on automatically.
switch on phrasal verb ( see also ↑ switch )
to turn on a machine, light, radio etc using a switch
switch something ↔ on
He switched the torch on.
When a tape is put in the VCR, it switches on automatically.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012