Englishfor English speakers
on
Preposition
—
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.
—
along, forwards (continuing an action)
drive on, rock on
—
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.
on
Adjective
—
If something is on, it is active, functioning or operating.
The television is on.
The lights are on, so it is very bright.
off
Preposition
—
Away from somewhere or some time.
I got ready and by 7:00 I was off to school.
There's a nice restaurant just off the main road.
Bye, I'll be off now.
He was standing about 50m off.
Your birthday's only a few days off now.
—
If something is off it is not on.
She took the hat off his head.
Keep your feet off the desk, please.
—
Out of a vehicle such as a train, bus, etc.
As the train stopped, he jumped off and ran to her.
—
If something that uses energy is off, it is not working.
It was dark in the room because the light was off.
He turned the TV off and went to bed.
—
If you are off, you do not have to go to work or to school.
I work evenings, but I have my afternoons off.
—
made smaller by a certain amount
They've taken 30% off the price.
We cut off a few pieces.
—
If a plan, event, etc. is off, it will not happen.
Tonight's game is off because of the rain.
They've called off the meeting.
—
If you're off something, you don't like or want something you wanted before.
That article really put me off meat.
—
If you're off some medicine, you are not using it any more.
He's been off the pain killers for a few weeks.
off
Adjective
—
If food is off, it is not good to eat anymore.
off
Verb
—
If a person offs someone, they kill him or her.
I heard they offed Jimmy by drowning.
device
Noun
—
A device is a small machine or tool.
She has a device in her kitchen for cutting garlic.
—
A device is a machine or part attached to a computer, such as a keyboard, mouse, printer etc.
The mouse is an important device for using the computer.
—
A device is a clever way of doing something.
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A device is a logo.