Freeboard

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Freeboard may refer to:

  • Freeboard (nautical), the height of a ship's deck above the water level.
  • Freeboard (skateboard), a six-wheeled skateboard designed to act like a snowboard on pavement.
  • In civil engineering, the amount of watertight surface between a given level of lake, sea or river water and the lowest possible entry point during flooding or large waves.
  • The height of an ice floe above the water surface.