Open English Wordnet
Nouns
(n)fiber, fibrea slender and greatly elongated substance capable of being spun into yarn (n)roughage, fiber, fibrecoarse, indigestible plant food low in nutrients; its bulk stimulates intestinal peristalsis (n)fiber, fibreany of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber) (n)character, fiber, fibrethe inherent complex of attributes that determines a persons moral and ethical actions and reactions“education has for its object the formation of character” (Herbert Spencer)