(n.) A group or division of ten; especially, a period of ten years; a decennium; as, a decade of years or days; a decade of soldiers; the second decade of Livy.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). decade. Retrieved September 22, 2026, from http://smartdefine.org/decade/definitions/1994820 |
| Chicago | Webster's. 2011. "decade" http://smartdefine.org/decade/definitions/1994820 (accessed September 22, 2026). |
| Harvard | Webster's 2011, decade, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/decade/definitions/1994820>. |
| MLA | Webster's. "decade" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/decade/definitions/1994820> |