water level

Noun
  1. The level of the surface of a body of water (synset 105139486)
    is a type of: elevation - distance of something above a reference point (such as sea level)
    subtypes: sea level - level of the ocean's surface (especially that halfway between mean high and low tide); used as a standard in reckoning land elevation or sea depth
  2. Underground surface below which the ground is wholly saturated with water (synset 109499253)
    "spring rains had raised the water table"
    is a type of: formation, geological formation - (geology) the geological features of the earth
    same as: groundwater level, water table
  3. 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 (synset 108696521)
    is a type of: line - a spatial location defined by a real or imaginary unidimensional extent
    subtypes: load line, plimsoll, plimsoll line, plimsoll mark - waterlines to show the level the water should reach when the ship is properly loaded
    same as: water line, waterline
  4. A water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube (synset 104568296)
    is a type of: water gage, water gauge, water glass - gauge for indicating the level of water in e.g. a tank or boiler or reservoir

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