- (n.) A game between four players, with two on each side and each side playing but one ball, the partners striking alternately. It is called a mixed foursome when each side consists of a man and a woman.
- (a.) Consisting of four; requiring four participants.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). foursome. Retrieved September 22, 2026, from http://smartdefine.org/foursome/definitions/2009878 |
| Chicago | Webster's. 2011. "foursome" http://smartdefine.org/foursome/definitions/2009878 (accessed September 22, 2026). |
| Harvard | Webster's 2011, foursome, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/foursome/definitions/2009878>. |
| MLA | Webster's. "foursome" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/foursome/definitions/2009878> |