Fiber

(noun) a slender and greatly elongated substance capable of being spun into yarn. Synonyms: fiber, fibre.

(noun) coarse, indigestible plant food low in nutrients; its bulk stimulates intestinal peristalsis. Synonyms: roughage, fiber.

(noun) any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber). Synonyms: fiber, fibre.

(noun) the inherent complex of attributes that determines a persons moral and ethical actions and reactions. Synonyms: character, fiber, fibre. Example: "Education has for its object the formation of character"- herbert spencer."

(noun) a leatherlike material made by compressing layers of paper or cloth. Synonyms: fiber, fibre, vulcanized fiber.