noun
- The cardinal number that is the sum of eight and one.
- synonyms: nine, 9, niner, Nina from Carolina, ennead
adjective
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). IX. Retrieved September 20, 2026, from http://smartdefine.org/ix/definitions/1177011 |
| Chicago | WordNet. 2010. "IX" http://smartdefine.org/ix/definitions/1177011 (accessed September 20, 2026). |
| Harvard | WordNet 2010, IX, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ix/definitions/1177011>. |
| MLA | WordNet. "IX" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/ix/definitions/1177011> |