/ Dictionary / Index B biffin: Meaning and Definition of Find definitions for: bif•fin Pronunciation: (bif'in), [key] — n. a deep-red cooking apple native to Britain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. biff biffy Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language