430 entries under noun topic. ×
| etymon(cause, word) | |
| marrow(place, quality, cause, character) | |
| quick(place, body, cause, start) | |
| radical(adjective, original, basic, fundamental) | |
| radix(cause, base, source, core) | |
| theme | |
| tuber(nature, cause, base, source) | |
| ancestor(person, cause, source, derivation) | |
| ascendent | |
| derivation(cause, start, point, base) | |
| descent | |
| fountain(cause, start, point, base) | |
| ground(verb, form, support, cause) | |
| grounds(cause, reason, substance, object) | |
| groundwork(support, cause, rest, base) | |
| infrastructure(organization, support, action, cause) | |
| nucleus(support, action, place, quality) | |
| origination(cause, top, opening, foundation) | |
| pith(place, quality, body, cause) | |
| provenance(cause, start, point, base) |
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| APA | Smart Define. (2016). root thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/root/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "root thesaurus" https://smartdefine.org/root/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, root thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/root/thesaurus/synonyms>. |
| MLA | Smart Define. "root thesaurus" 2 March 2016. Web. 23 September 2026. <https://smartdefine.org/root/thesaurus/synonyms> |