a glass for drinking water | a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube |
gauge for indicating the level of water in e.g. a tank or boiler or reservoir | the level of the surface of a body of water |
clock that measures time by the escape of water | 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 |
a viscous glass consisting of sodium silicate in solution; used as a cement or as a protective coating and to preserve eggs | underground surface below which the ground is wholly saturated with water |