430 entries under noun topic. ×
| provenience(cause, start, point, base) | |
| reason(support, action, cause, substance) | |
| seed(fix, cause, establish, base) | |
| spring(cause, start, top, point) | |
| well(adverb, cause, start, point) | |
| ascendant | |
| center(support, action, person, place) | |
| factor(drop, part, cause, reason) | |
| genesis(cause, start, top, reason) | |
| inception(cause, top, base, beginning) | |
| rudiment(support, action, cause, start) | |
| stuff(quality, cause, character, spirit) | |
| substance(quality, body, cause, character) | |
| basic(adjective, drop, part, material) | |
| bedrock(support, action, cause, reason) | |
| crux(support, action, quality, cause) | |
| fountainhead(cause, start, point, base) | |
| gist(place, body, substance, idea) | |
| grandfather | |
| kernel(place, quality, body, character) |
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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> |