Meaning of the word "switch on" in English

What does "switch on" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

switch on

US /swɪtʃ ɑːn/
UK /swɪtʃ ɒn/
"switch on" picture

Phrasal Verb

to turn on an electrical device or light

Example:
Please switch on the light.
I need to switch on my computer to start working.