fibre Meaning in the Cambridge English Dictionary
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Meaning of “fibre” in the English Dictionary

"fibre" in British English

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UK (US fiber) uk   /ˈfaɪ.bər/  us   /-bɚ/

fibre noun (THREAD)

[C] any of the thread-like ​parts that ​formplant or ​artificialmaterial and can be made into ​cloth: The fibres are ​woven into ​fabric. [C or U] threads when they are in a ​mass that can be used for making ​products such as ​cloth and ​rope: Natural fibres such as ​cottontend to be ​cooler. artificial/​man-made/​natural fibre [C or U] one of ​various thread-like ​structures in the ​body, such as those ​found in ​muscle: muscle fibre(s)
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fibre noun (FOOD)

C1 [U] a ​substance in ​certainfoods, such as ​fruit, ​vegetables, and ​brownbread, that ​travels through the ​body as ​waste and ​helps the ​contents of the ​bowels to ​pass through the ​bodyeasily: You should ​eat more dietary fibre to ​reduce the ​risk of ​bowelcancer.
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fibre noun (CHARACTER)

[U] strength of ​character: He ​lacked the moral fibre to be ​leader.
(Definition of fibre from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"fibre" in Business English

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uk   us   /ˈfaɪbər/ UK ( US fiber)
[C or U] a thread-like ​part made from ​plants or artificial ​material which can be made into ​products: Natural fibres such as cotton tend to be cooler. artificial/​man-made/​synthetic fibre(s) They use ​lightweight carbon fiber for ​auto bodies. The data-carrying ​capacity of a strand of optical fibre is ​doubling every ​year.
(Definition of fibre from the Cambridge Business English Dictionary © Cambridge University Press)
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