(a.) Having four sides and four equal angles.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). foursquare. Retrieved September 24, 2026, from http://smartdefine.org/foursquare/definitions/2009879 |
| Chicago | Webster's. 2011. "foursquare" http://smartdefine.org/foursquare/definitions/2009879 (accessed September 24, 2026). |
| Harvard | Webster's 2011, foursquare, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/foursquare/definitions/2009879>. |
| MLA | Webster's. "foursquare" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/foursquare/definitions/2009879> |