Definitions
1.nounA drinking vessel intended or used for water."She asked the server to refill her water glass."
2.nounAny of various water-soluble silicate compounds, especially when occurring in dissolved, jelly-like form.
3.nounA water gauge for a steam boiler.
4.nounAn instrument consisting of an open box or tube with a glass bottom, used for examining objects in the water, as upon the sea bottom in shallow places.
5.nounA water clock.