/ Dictionary / Index B blackboard: Meaning and Definition of Find definitions for: black•board Pronunciation: (blak'bôrd", -bōrd"), [key] — n. a sheet of smooth, hard material, esp. dark slate, used in schools, lecture rooms, etc., for writing or drawing on with chalk. Also calledCf. greenboard. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: blackboard (Thesaurus) black blizzard blackboard jungle Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language