noun
- An eight-sided polygon. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). octagon. Retrieved September 21, 2026, from http://smartdefine.org/octagon/definitions/1244810 |
| Chicago | WordNet. 2010. "octagon" http://smartdefine.org/octagon/definitions/1244810 (accessed September 21, 2026). |
| Harvard | WordNet 2010, octagon, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/octagon/definitions/1244810>. |
| MLA | WordNet. "octagon" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/octagon/definitions/1244810> |