verb
- Become turned or set on end.
- usage: "the airplanes upended"
- Set, turn, or stand on end.
- usage: "upend the box and empty the contents"
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). upend. Retrieved September 20, 2026, from http://smartdefine.org/upend/definitions/1318453 |
| Chicago | WordNet. 2010. "upend" http://smartdefine.org/upend/definitions/1318453 (accessed September 20, 2026). |
| Harvard | WordNet 2010, upend, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/upend/definitions/1318453>. |
| MLA | WordNet. "upend" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/upend/definitions/1318453> |