on

on is on the Basic English 850 List.

old - on - only

on is one of the 1000 most common headwords.

old - on - once

Preposition change

It is on the box

positioned at the upper surface of, touching from above
The apple is on the table.
at the date of
Tim was born on the 4th of July.
about, dealing with the subject of
I have a book on history.

There was a World Summit on the Information Society a few weeks ago.
touching; hanging from
I have no money on me at the moment.

I would like to eat the fruit on the trees.
because of, due to
He was arrested on suspicion of bribery.

I contacted Joanne on a hunch that she would know about it.

The stock price increased on news of a new product.

Positive
on

Comparative
none

Superlative
none

to an operating state
I turned the television on.
along, forwards (continuing an action)
Shall we stop for lunch or shall we drive on?

Positive
on

(not before a noun) If something is on, it is active, functioning or operating.
- Antonym: off
The television is on.

The lights are on, so it is very bright.