/ Dictionary / Index O off-board: Meaning and Definition of Find definitions for: off-board Pronunciation: (ôf'bôrd', -bōrd', of'-), [key] — adj., adv. Stock Exchange. outside of a major exchange, as over the counter or between private parties: an off-board transaction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. offbeat off-brand Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language