/ Dictionary / Index F FMB: Meaning and Definition of Find definitions for: FMB Pronunciation: [key] Federal Maritime Board. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. FM FMC Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language