Englishfor English speakers
clean
Adjective
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If something is clean, it is free from dirt
The kids came back from the washroom with clean hands and faces.
Did you wash these dishes? They don't look very clean.
To keep the air clean, smoking is not allowed.
I clear our breakfast and wipe the table clean with a wet rag.
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If a technology is clean, it doesn't produce much pollution.
We want to use wind as safe, clean, non-polluting energy.
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If something is clean, it is not bad.
There was a lot of pushing in their last game, but today's match was mostly clean.
No dirty jokes, please. Keep your language clean.
The police searched the car for drugs, but it was clean.
Her driving record was clean.
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A clean piece of paper, start, etc. has nothing from before: no writing, no history, etc.
Why don't you get a clean piece of paper and start over.
I wanted a clean start, so I moved to LA.
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If a something is clean, it is smooth, simple, and regular, without anything unwanted.
Your company website needs a clean design that makes it easy for consumers to understand what you're selling.
It's a clean cut, made with something sharp like a razor or a knife.
clean
Verb
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If you clean something, you take away the dirt and put everything in its place.
Tomo, will you clean up your room please. There are clothes all over the floor.
oil
Noun
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Oil is a liquid that is burned to create heat or used in machines to make them run well.
Gas and oil are essential to running a car.
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Oil is a liquid made of fat that is used for cooking.
Cook the potatoes in oil.
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An oil is a painting made of oil paint.
oil
Verb
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If you oil something, you put clear oil on a machine to make it run well.
She oiled the parts of the gun.