Noun
Any one of certain lines of a vessel, model, or plan, parallel with the surface of the water at various heights from the keel.
Any one of several lines marked upon the outside of a vessel, corresponding with the surface of the water when she is afloat on an even keel. The lowest line indicates the vessel's proper submergence when not loaded, and is called the light water line; the highest, called the load water line, indicates her proper submergence when loaded.
Source: Webster's dictionaryA bathtub ring of light minerals shows the high water line near Hoover Dam on Lake Mead at the Lake Mead National Recreation Area in Nevada in 2014. Source: Internet
An 8-inch water line remains on the door of Otto Lohmann's garage, the mark of storm surge which entered his utility room and garage overnight at his home on Thursday, Nov. 12, 2020, in Oldsmar, Fla., in the aftermath of Tropical Storm Eta. Source: Internet
About one week into the campaign, because we holed Fine Gael below the water line when it comes to highlighting 2 billion euros which they didn’t have, they never really recovered from that. Source: Internet
“A 16-inch water line doesn’t fail very often but when it does you remember it,” sad Flemming. Source: Internet
Additionally, the water line was extended to reach the caboose for watering lawns and to supply water, perhaps to help save the old tower in the event of another fire emergency. Source: Internet
As guns became heavier and able to take more powerful gunpowder charges, they needed to be placed lower in the ship, closer to the water line. Source: Internet