/ Dictionary / Index W whiteboard: Meaning and Definition of Find definitions for: white•board Pronunciation: (hwīt'bôrd", -bōrd", wīt'-), [key] a smooth, glossy sheet of white plastic that can be written on with a colored pen or marker in the manner of a blackboard. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. white blood cell white book Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language