SINCE 1828

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the waterline

noun

Definition of the waterline

: the level that water reaches on the side of a ship

We repaired the hull below the waterline.

Word by Word Definitions

waterline play

: a line that marks the level of the surface of water on something: such as
: the point on the hull of a ship or boat to which the water rises
: a line marked on the outside of a ship that corresponds with the water's surface when the ship is afloat on an even keel under specified conditions of loading

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