(n.) The nail or knob on which in ancient doors the knocker struck; -- hence the old saying, "As dead as a doornail.".
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). doornail. Retrieved September 25, 2026, from http://smartdefine.org/doornail/definitions/2000025 |
| Chicago | Webster's. 2011. "doornail" http://smartdefine.org/doornail/definitions/2000025 (accessed September 25, 2026). |
| Harvard | Webster's 2011, doornail, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/doornail/definitions/2000025>. |
| MLA | Webster's. "doornail" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/doornail/definitions/2000025> |