- (n.) A race for three-old horses, run annually at Epsom (near London), for the Derby stakes. It was instituted by the 12th Earl of Derby, in 1780.
- (n.) A stiff felt hat with a dome-shaped crown.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). derby. Retrieved September 20, 2026, from http://smartdefine.org/derby/definitions/1996410 |
| Chicago | Webster's. 2011. "derby" http://smartdefine.org/derby/definitions/1996410 (accessed September 20, 2026). |
| Harvard | Webster's 2011, derby, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/derby/definitions/1996410>. |
| MLA | Webster's. "derby" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/derby/definitions/1996410> |