- (n.) The day of the final judgment.
- (n.) A day of sentence or condemnation; day of death.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). doomsday. Retrieved September 22, 2026, from http://smartdefine.org/doomsday/definitions/2000014 |
| Chicago | Webster's. 2011. "doomsday" http://smartdefine.org/doomsday/definitions/2000014 (accessed September 22, 2026). |
| Harvard | Webster's 2011, doomsday, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/doomsday/definitions/2000014>. |
| MLA | Webster's. "doomsday" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/doomsday/definitions/2000014> |