/ Dictionary / Index S stock buyback: Meaning and Definition of Find definitions for: stock' buy"back Pronunciation: [key] buyback (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stockbroker stock car Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language