/ Dictionary / Index F fibre: Meaning and Definition of Find definitions for: fi•bre Pronunciation: (fī'bur), [key] — n. Chiefly Brit. fiber. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fibre (Thesaurus) fibratus fibriform Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language