/ Dictionary / Index F fib: Meaning and Definition of Find definitions for: fib Pronunciation: (fib), [key] — n., v., fibbed, fib•bing. —n. a small or trivial lie; minor falsehood. —v.i. to tell a fib. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fib (Thesaurus) fiat money fiber Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language