#board  a flat piece of material designed for a special purpose; "he nailed boards across the windows"
  supertype:  flat_solid__sheet  a flat artifact that is thin relative to its length and width
  subtype:  aquaplane  a board that is pulled by a speedboat as a person stands on it and skims over the top of the water
  subtype:  breadboard__bread_board  a wooden or plastic board on which dough is kneaded or bread is sliced
  subtype:  bulletin_board__notice_board  a board that hangs on a wall; displays announcements
     subtype:  call-board  a bulletin board backstage in a theater
  subtype:  chopping_board__cutting_board__cuttingboard  a wooden board where meats or vegetables can be cut
  subtype:  drafting_board__drawing_board  a smooth board on which paper is placed for making drawings
  subtype:  drainboard__draining_board  a board beside a kitchen sink and inclined to drain into the sink
  subtype:  floor_board__floorboard__floorboard  a board in the floor
  subtype:  ironing_board__ironingboard  narrow padded board on collapsible supports; used for ironing clothes
  subtype:  kneeler  a board (sometimes cushioned) for someone to kneel on
  subtype:  mortarboard.board  a square board with a handle; used by masons to hold or carry mortar
  subtype:  palette__pallet  board that provides a flat surface on which artists mix paints and the range of colors used
  subtype:  planchette  a triangular board supported on casters; when lightly touched with the fingertips it is supposed to spell out supernatural (or unconscious) messages
  subtype:  scoreboard  a large board for displaying the score of a contest (and some other information)
  subtype:  sideboard.board  a board that forms part of the side of a bed or crib
  subtype:  sideboard  a removable board fitted on the side of a wagon to increase its capacity
  subtype:  skateboard  a board with wheels that is ridden in a standing or crouching position
  subtype:  springboard  a flexible board for jumping upward
     subtype:  diving_board  a springboard from which swimmers can dive
        subtype:  highboard  a high diving board
  subtype:  surfboard  a narrow buoyant board for riding surf
  subtype:  trencher  a wooden board or platter on which food is served or carved
  subtype:  wakeboard  a buoyant board (resembling a surfboard) that is used to ride over water while being pulled behind a motorboat
  subtype:  workboard  a horizontal board that provides a supported surface for manual work

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