- A kind of leveling instrument. See under Level, n.
- The level formed by the surface of still water.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). water level. Retrieved September 21, 2026, from http://smartdefine.org/water_level/definitions/2080929 |
| Chicago | Webster's. 2011. "water level" http://smartdefine.org/water_level/definitions/2080929 (accessed September 21, 2026). |
| Harvard | Webster's 2011, water level, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/water_level/definitions/2080929>. |
| MLA | Webster's. "water level" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/water_level/definitions/2080929> |