- a variant of fiber.
- a natural or synthetic filament that may be spun into yarn, such as cotton or nylon
- cloth or other material made from such yarn
- a long fine continuous thread or filament
- the structure of any material or substance made of or as if of fibres; texture
- essential substance or nature
- strength of character (esp in the phrase moral fibre)
- See dietary fibre
- botany
- a narrow elongated thick-walled cell: a constituent of sclerenchyma tissue
- such tissue extracted from flax, hemp, etc, used to make linen, rope, etc
- a very small root or twig
- any thread-shaped structure, such as a nerve fibre
