Source : Webster's Revised Unabridged Dictionary (1913)

Sideboard \Side"board`\, n.
   A piece of dining-room furniture having compartments and
   shelves for keeping or displaying articles of table service.

         At a stately sideboard, by the wine, That fragrant
         smell diffused.                          --Milton.

Source : WordNet®

sideboard
     n 1: a removable board fitted on the side of a wagon to increase
          its capacity
     2: a board that forms part of the side of a bed or crib
     3: a piece of furniture that stands at the side of a dining
        room; has shelves and drawers [syn: {buffet}, {counter}]