2 entries under idiom topic. ×
| Carboniferous period(noun, expression) | |
| geological period(expression, adjective) |
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| APA | Smart Define. (2013). carboniferous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/carboniferous/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "carboniferous thesaurus" https://smartdefine.org/carboniferous/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2013, carboniferous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/carboniferous/thesaurus/synonyms>. |
| MLA | Smart Define. "carboniferous thesaurus" 17 June 2013. Web. 29 September 2026. <https://smartdefine.org/carboniferous/thesaurus/synonyms> |