| APA | Smart Define. (-0001). dead as a doornail thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/dead_as_a_doornail/thesaurus/broader |
| Chicago | Smart Define. -0001. "dead as a doornail thesaurus" https://smartdefine.org/dead_as_a_doornail/thesaurus/broader (accessed September 28, 2026). |
| Harvard | Smart Define -0001, dead as a doornail thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/dead_as_a_doornail/thesaurus/broader>. |
| MLA | Smart Define. "dead as a doornail thesaurus" 30 November -0001. Web. 28 September 2026. <https://smartdefine.org/dead_as_a_doornail/thesaurus/broader> |