adjective
- The ordinal number of forty in counting order.
- synonyms: fortieth
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). 40th. Retrieved September 21, 2026, from http://smartdefine.org/40th/definitions/1166922 |
| Chicago | WordNet. 2010. "40th" http://smartdefine.org/40th/definitions/1166922 (accessed September 21, 2026). |
| Harvard | WordNet 2010, 40th, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/40th/definitions/1166922>. |
| MLA | WordNet. "40th" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/40th/definitions/1166922> |