on
/ɑn/
adjective
- Operating or functioning; not off.
- The TV is on in the living room.
- Is the oven on?
- The engine is on and running.
- Happening or taking place as planned.
- The concert is on for Friday.
- Is the trip on or canceled?
- The meeting is still on.
noun
- The side of the wicket where the batsman stands (in cricket); also used in phrases like 'the on side'.
- The bowler aimed at the on.
- He hit the ball to the on side.
- The fielder moved to the on.
adverb
- In or into a position of being attached, covering, or operating.
- She screwed the lid on tightly.
- Turn the light on, please.
- Put your coat on before you go out.
- Continuing forward in time or space.
- He talked on for hours.
- They walked on down the road.
- The show must go on.
- Indicating that something is happening or scheduled.
- The deal is on.
- The game is on despite the rain.
- Is the party still on for tonight?
preposition
- Positioned above and touching a surface; supported by.
- She sat on the bench.
- The book is on the table.
- There is a fly on the wall.
- Indicating a day or date.
- She was born on a Monday.
- The party is on Saturday.
- We met on July 4th.
- Indicating a device or machine that is operating or being used.
- He is on the phone right now.
- The movie is on TV tonight.
- She is on her computer.
- Indicating a subject or topic.
- I read a book on gardening.
- She gave a speech on climate change.
- We have a test on chapter five.
- Indicating a state or condition.
- She is on a strict diet.
- The house is on fire!
- He is on vacation this week.
- Indicating membership in a group or committee.
- She serves on the board of directors.
- He is on the soccer team.
- I am on the planning committee.