133 entries under core topic. ×
| ground(noun, verb, form, support, cause) | |
| groundwork(noun, support, cause, rest, base) | |
| infrastructure(noun, organization, support, action, cause) | |
| nucleus(noun, support, action, place, quality) | |
| pith(noun, place, quality, body, cause) | |
| provenance(noun, cause, start, point, base) | |
| provenience(noun, cause, start, point, base) | |
| reason(noun, support, action, cause, substance) | |
| seed(noun, fix, cause, establish, base) | |
| well(noun, adverb, cause, start, point) | |
| center(noun, support, action, person, place) | |
| inception(noun, cause, top, base, beginning) | |
| stuff(noun, quality, cause, character, spirit) | |
| substance(noun, quality, body, cause, character) | |
| basic(noun, adjective, drop, part, material) | |
| bedrock(noun, support, action, cause, reason) | |
| crux(noun, support, action, quality, cause) | |
| fountainhead(noun, cause, start, point, base) | |
| gist(noun, place, body, substance, idea) | |
| kernel(noun, place, quality, body, character) |
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| APA | Smart Define. (2016). root thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/root/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "root thesaurus" https://smartdefine.org/root/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, root thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/root/thesaurus/synonyms>. |
| MLA | Smart Define. "root thesaurus" 2 March 2016. Web. 20 September 2026. <https://smartdefine.org/root/thesaurus/synonyms> |