Meaning of the word "be on" in English

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

be on

US /bi ɑn/
UK /bi ɒn/

Phrasal Verb

1.

to be broadcast or performed

Example:
What's on TV tonight?
The play will be on for another two weeks.
2.

to be scheduled to happen

Example:
The meeting is still on for 3 PM.
Is the party still on for Saturday?
3.

to be taking place or functioning

Example:
The lights are on.
The heating is on, so it should get warm soon.