n.
Pronunciation: ' wo ̇ -t ə r- ˌ l ī n, ' wä-
Function: noun
Date: circa 1625
: a line that marks the level of the surface of water on something: as a (1) : the point on the hull of a ship or boat to which the water rises (2) : 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 b : SHORELINE 1