Freeboard

Look up freeboard in Wiktionary, the free dictionary.

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.

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