- (a.) Obligatory; enjoined by authority; necessary; due to compulsion.
- (a.) Having the power of compulsion; constraining.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). compulsory. Retrieved September 20, 2026, from http://smartdefine.org/compulsory/definitions/1989787 |
| Chicago | Webster's. 2011. "compulsory" http://smartdefine.org/compulsory/definitions/1989787 (accessed September 20, 2026). |
| Harvard | Webster's 2011, compulsory, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/compulsory/definitions/1989787>. |
| MLA | Webster's. "compulsory" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/compulsory/definitions/1989787> |