on't

Adjective

on (not comparable)

1. In the state of being active, functioning or operating.
   • All the lights are on, so they must be home.

   Antonyms:

   off

2. Happening; taking place; being or due to be put into action.
   • We had to ration our food because there was a war on.
   1. (informal) Of a person, used to express agreement to or acceptance of a proposal or challenge made by that person; most commonly with subject “you” (see you're on).
      • "Five bucks says the Cavs win tonight." ―"You're on!"
3. Fitted; covering or being worn.
   • Your feet will soon warm up once your socks are on.
4. (postpositional) Of a stated part of something, oriented towards the viewer or other specified direction.
   • The photograph shows the UFO side on.
5. (UK, informal) Acceptable, appropriate.
   • It's not fair to do that – it's just not on.

See all 71 meanings of on