fibre
Americannoun
noun
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a natural or synthetic filament that may be spun into yarn, such as cotton or nylon
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cloth or other material made from such yarn
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a long fine continuous thread or filament
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the structure of any material or substance made of or as if of fibres; texture
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essential substance or nature
all the fibres of his being were stirred
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strength of character (esp in the phrase moral fibre )
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See dietary fibre
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botany
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a narrow elongated thick-walled cell: a constituent of sclerenchyma tissue
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such tissue extracted from flax, hemp, etc, used to make linen, rope, etc
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a very small root or twig
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anatomy any thread-shaped structure, such as a nerve fibre
Other Word Forms
Etymology
Origin of fibre
C14: from Latin fibra filament, entrails
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"Power, grid, cooling, land-use, fibre, regulation and community engagement need to be planned together," he said.
From Barron's ● Jul. 17, 2026
"Eggs contain all nine essential amino acids that the body needs," she said, noting that pulses - while also nutritious - contain more fibre and a higher share of non-essential amino acids.
From BBC ● Jul. 4, 2026
The Indonesian telecom tower operator continues to expand its asset base in a disciplined manner, ending 1Q with around 36,572 towers and 181,700 kilometers of fibre optic network, the analysts note.
From The Wall Street Journal ● Jun. 29, 2026
Observations show the people use narrow outrigger canoes, live in large communal huts, carry spears, bows and arrows, and wear fibre waistbelts, as well as necklaces and headbands.
From Barron's ● May 18, 2026
I meant it with every fibre of my being.
From "Code Name Kingfisher" by Liz Kessler
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.