Englishfor English speakers
extension
Noun
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The space that something occupies.
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Extension is the process of making something longer.
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An extension is the time or part of something that was added to make it longer.
She had extensions put in her hair and now she has long hair.
He couldn't pay in May so the bank gave him an extension until July.
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An extension is the operation of pulling the two ends of a broken bone to bring the broken pieces into the same straight line.
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Extension is the act of moving an arm, leg, finger, etc. so that it is straight.
tube
Noun
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A tube is a long object with a hole from one end to the other. The ends may be closed or open.
The high pressure forces the water through the tube.
Toothpaste comes in a tube.
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The Tube is the underground train system in London, England.
tube
Verb
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If you tube, you float on an inner tube.
We went white-water tubing on the Yukon River.