430 entries under noun topic. ×
| action(support, cause, base, beginning) | |
| ancestry(cause, source, origin, derivation) | |
| answer | |
| argument(cause, reason, base, call) | |
| author(person, cause, reason, base) | |
| bag | |
| blood | |
| bottom line(expression, support, body, spirit) | |
| corm | |
| drive(verb, cause, turn, produce) | |
| essential(adjective, support, action, base) | |
| etymology | |
| extraction | |
| floor | |
| fundament(support, rest, base, basis) | |
| gravamen(law, heart, basic, be) | |
| hoof | |
| informant(cause, foundation, basis) | |
| keel | |
| keynote(support, action, idea, base) |
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| APA | Smart Define. (2016). root thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/root/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "root thesaurus" https://smartdefine.org/root/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, root thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/root/thesaurus/synonyms>. |
| MLA | Smart Define. "root thesaurus" 2 March 2016. Web. 24 September 2026. <https://smartdefine.org/root/thesaurus/synonyms> |