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
hole
Noun
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A hole is an empty space in an object or material.
He fell into the water through a hole in the ice.
They dug a hole in the ground for the tree.
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In golf, a hole is the place you tried to hit the ball into.
It took four shots to get the ball in the hole.