noun
- The cardinal number that is the sum of eight and one.
- synonyms: nine, IX, niner, Nina from Carolina, ennead
adjective
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). 9. Retrieved September 20, 2026, from http://smartdefine.org/9/definitions/1167005 |
| Chicago | WordNet. 2010. "9" http://smartdefine.org/9/definitions/1167005 (accessed September 20, 2026). |
| Harvard | WordNet 2010, 9, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/9/definitions/1167005>. |
| MLA | WordNet. "9" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/9/definitions/1167005> |