noun
- The time of life between 30 and 40.
- synonyms: mid-thirties, thirty-something
- The decade from 1930 to 1939.
- synonyms: 1930s
- The cardinal number that is the product of ten and three.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). thirties. Retrieved September 21, 2026, from http://smartdefine.org/thirties/definitions/1249899 |
| Chicago | WordNet. 2010. "thirties" http://smartdefine.org/thirties/definitions/1249899 (accessed September 21, 2026). |
| Harvard | WordNet 2010, thirties, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/thirties/definitions/1249899>. |
| MLA | WordNet. "thirties" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/thirties/definitions/1249899> |