water level

Noun

• a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube

• 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

• underground surface below which the ground is wholly saturated with water
  • spring rains had raised the water table
    

• the level of the surface of a body of water

Related words

• Synonyms: 
  waterline , water line , water table , groundwater level