/ Dictionary / Index F f.b.: Meaning and Definition of Find definitions for: f.b. Pronunciation: [key] freight bill. fullback. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. faze F.B.A. Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language