/ Dictionary / Index Y yaff: Meaning and Definition of Find definitions for: yaff Pronunciation: (yaf), [key] to bark; yelp. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Yad Vashem* Yafo Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language