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fibre

American  
[fahy-ber] / ˈfaɪ bər /

noun

Chiefly British.
  1. a variant of fiber.


fibre British  
/ ˈfaɪbə /

noun

  1. a natural or synthetic filament that may be spun into yarn, such as cotton or nylon

  2. cloth or other material made from such yarn

  3. a long fine continuous thread or filament

  4. the structure of any material or substance made of or as if of fibres; texture

  5. essential substance or nature

    all the fibres of his being were stirred

  6. strength of character (esp in the phrase moral fibre )

  7. See dietary fibre

  8. botany

    1. a narrow elongated thick-walled cell: a constituent of sclerenchyma tissue

    2. such tissue extracted from flax, hemp, etc, used to make linen, rope, etc

    3. a very small root or twig

  9. anatomy any thread-shaped structure, such as a nerve fibre

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

See Examples For:

"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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