Englishfor English speakers
impact
Noun
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An impact is the act of one object hitting another.
In tests, the driver was unhurt, even in high-speed impacts.
Many buildings were destroyed as the plane exploded on impact.
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The impact is the effect of an act, statement, change, etc.
The report noted that most teachers feel that IT has made little impact on formal education.
The environmental impact of such increases in efficiency, however, depends on how you generate the power.
impact
Verb
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If something impacts you, it has an effect on you.
It is obvious how bad movies will impact on children.
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If you impact something, you press (or pack) its together.
There is a special tool to impact the road when it is under construction so the base is solid.
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.
STH
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noun
(= somatotropin)
a hormone produced by the anterior pituitary gland; promotes growth in humans