/ Dictionary / Index D drainboard: Meaning and Definition of Find definitions for: drain•board Pronunciation: (drān'bôrd", -bōrd"), [key] — n. a working surface beside or on a kitchen sink, formed and inclined to drain into the sink. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: drainboard (Thesaurus) drainage wind drainfield Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language