noun
- Position 30 in a countable series of things.
adjective
- Coming next after the twenty-ninth in position.
- synonyms: 30th
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). thirtieth. Retrieved September 20, 2026, from http://smartdefine.org/thirtieth/definitions/1185318 |
| Chicago | WordNet. 2010. "thirtieth" http://smartdefine.org/thirtieth/definitions/1185318 (accessed September 20, 2026). |
| Harvard | WordNet 2010, thirtieth, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/thirtieth/definitions/1185318>. |
| MLA | WordNet. "thirtieth" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/thirtieth/definitions/1185318> |