1. (noun) a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship

• water level
• waterline

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

• watermark

1. (noun) a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship

• load line
• plimsoll
• plimsoll line
• plimsoll mark

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

• high-water mark
• low-water mark

1. (noun) a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship

• line

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

• line