Englishfor English speakers
add
Verb
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If you add mathx/math to mathy/math, you put mathx/math and mathy/math together.
Cook for five minutes, then add the remaining spices to the soup.
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If you add time, or price, you increase it.
A new kitchen would add value to the home.
We need to add five more waiters by next week.
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If you add something to what you've said, you say something more.
I paused for a moment, then added, "Would you mind if I had some pudding?"
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.
device
Noun
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A device is a small machine or tool.
She has a device in her kitchen for cutting garlic.
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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.
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A device is a clever way of doing something.
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A device is a logo.