/ Dictionary / Index S sideboard: Meaning and Definition of Find definitions for: side•board Pronunciation: (sīd'bôrd", -bōrd"), [key] — n. a piece of furniture, as in a dining room, often with shelves, drawers, etc., for holding articles of table service. a board forming a side or a part of a side; sidepiece. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sideboard (Thesaurus) side bet sidebone Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language