Englishfor English speakers
tunneling
noun
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The act of burrowing a tunnel.
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The practice of exploring tunnel.
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(physics) The quantum mechanical passing of a particle through an energy barrier.
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(finance) A type of fraud where assets and profits are transferred out of firms for the benefit of those who control them.
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quantum mechanical passing of a particle
speed
Verb
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When you speed, you move or do something very fast.
The plane sped through the air.
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When you speed in a car, you drive faster than the law allows.
If you speed in your car, you might have an accident.
speed
Noun
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The speed of something is how fast it moves.
sound moves at a very high speed.