51 entries under source topic. ×
| motive(cause, origin) | |
| nub(cause, origin) | |
| occasion(cause, origin) | |
| pith(cause, origin) | |
| reason(cause, origin) | |
| starting place(expression, cause, origin) | |
| stuff(cause, origin) | |
| substance(cause, origin) | |
| substratum(cause, quick, origin, stem) | |
| underpinning(cause, quick, origin, stem) | |
| well(cause, origin) |
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| APA | Smart Define. (2015). radix thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/radix/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "radix thesaurus" https://smartdefine.org/radix/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, radix thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/radix/thesaurus/synonyms>. |
| MLA | Smart Define. "radix thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/radix/thesaurus/synonyms> |