water-line
wa*ter*line
noun
{bc}a line that marks the level of the surface of {a_link|water} on something: such as
{bc}the point on the hull of a ship or boat to which the water rises
{bc}a line marked on the outside of a ship that corresponds with the wateru0027s surface when the ship is afloat on an even keel under specified conditions of loading
high-water mark
noun
{bc}highest point {bc}{sx|peak||}
the waterline
noun
{bc}the level that water reaches on the side of a ship