/ Dictionary / Index F FYI: Meaning and Definition of Find definitions for: FYI Pronunciation: [key] for your information. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fyce fyke Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language