freeboard

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English[edit]

Noun[edit]

freeboard (plural freeboards)

  1. (nautical) The vertical distance between the waterline and the uppermost watertight deck of a vessel.
  2. The distance between a water level and the top of something that contains or restrains it (such as a dam).
  3. The distance between the top of sea ice and the water level.

Derived terms[edit]