Englishfor English speakers
extreme
Adjective
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If something is extreme it is very different from normal.
This disease usually causes mild illness, but in exteme cases can cause death.
Few animals can live in the extreme cold of the far north.
extreme
Noun
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An extreme is a situation or idea taken to its limit, especially with two opposites.
When there is a crime, you have a range of choices. At one extreme you can do nothing. A the other extreme, you can kill the person.
fiber
Noun
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Fibers are thread-like structures found in textiles or vegetables
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Fiber is vegetable fibers eaten as part of a diet.
Eating more fiber will help you stay healthy.
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Fiber is thin glass fibers used to transmit computer data using pulses of light.