noun
- Baseball) a special rule (as in baseball) dealing with situations that arise due to the nature of the playing grounds. (.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ground rule. Retrieved September 20, 2026, from http://smartdefine.org/ground_rule/definitions/1219438 |
| Chicago | WordNet. 2010. "ground rule" http://smartdefine.org/ground_rule/definitions/1219438 (accessed September 20, 2026). |
| Harvard | WordNet 2010, ground rule, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ground_rule/definitions/1219438>. |
| MLA | WordNet. "ground rule" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/ground_rule/definitions/1219438> |