| 释义 | freeboard \ˈ ̷ ̷ˌ ̷ ̷\ noun
 1.
 a.  : the distance between the waterline and the freeboard deck of a ship
 b.  : the height that is above the recorded high-water mark of a structure associated with a body of water (as a dam, seawall, or culvert) and that is an allowance against overtopping by waves or other transient disturbances
 2.  : the space between the surface of the ground and the undercarriage of an automobile
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