water level noun 5water-level adjective 1forms 1 noun5 •The level of a body of water, especially when measured above a datum line. •The level of the water table below ground. •[before a noun] (Relating to) an instrument to show the level by means of the surface of water in a trough, or in upright tubes connected by a pipe.A water level indicator of the float type is provided. — 1957 •The waterline of a ship. •[before a noun] Of a route that follows a riverbank or shoreline. water-level adjective1 •Of or pertaining to a water level. formswater levels
