noun
- The sill of a window; the horizontal member at the bottom of the window frame. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). windowsill. Retrieved September 20, 2026, from http://smartdefine.org/windowsill/definitions/1209695 |
| Chicago | WordNet. 2010. "windowsill" http://smartdefine.org/windowsill/definitions/1209695 (accessed September 20, 2026). |
| Harvard | WordNet 2010, windowsill, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/windowsill/definitions/1209695>. |
| MLA | WordNet. "windowsill" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/windowsill/definitions/1209695> |