Dictionary & Thesaurus

1.

(noun) a line marking the level reached by a body of water

Synonyms: watermark

Related Words: high-water mark, line, low-water mark

2.

(noun) a line painted on the hull of a ship to correspond with the surface of the water when the ship is afloat on an even keel

Synonyms: water level, waterline

Related Words: Plimsoll, Plimsoll line, Plimsoll mark, line, load line