Englishfor English speakers
keep
Verb
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When you keep something for someone, you make something safe.
I will keep your money for you.
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When you keep something, you do not give it back.
Keep the change.
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When you keep safe, happy, quiet, etc, you stay that way.
Keep quiet.
keep
Noun
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A keep is a special safe area of a castle.
The king lived in the keep during the battle.
tab
Noun
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A tab is a small flap or strip of material attached to something.
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A tab is a tablet, especially one containing illegal drugs.
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A march.
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A student of Cambridge University.
on
Preposition
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positioned at the upper surface of, touching from above
The apple is on the table.
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at the date of
Tim was born on the 4th of July.
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along, forwards (continuing an action)
drive on, rock on
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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.
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touching; hanging from
I have no money on me at the moment.
I would like to eat the fruit on the trees.
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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
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If something is on, it is active, functioning or operating.
The television is on.
The lights are on, so it is very bright.