93 entries under root topic. ×
| ancestry(noun, place, cause, position) | |
| principle(noun, law, support, action, cause) | |
| mainspring(noun, cause, start, reason, idea) | |
| motive(noun, cause, start, reason, idea) | |
| starting point(noun, expression, idiom, cause, start) | |
| cradle(noun, place, cause, spot, base) | |
| creator(noun, person, cause, reason, base) | |
| reason(noun, support, regulation, action, cause) | |
| agent(noun, cause, reason, base, matter) | |
| occasion(noun, cause, start, reason, base) | |
| element(noun, cause, influence, reason, base) | |
| causation(noun, cause, reason, base, matter) | |
| core(noun, support, action, cause, start) | |
| grounds(noun, cause, reason, matter, agent) | |
| nucleus(noun, support, action, cause, start) | |
| prime mover(noun, expression, idiom, cause, reason) | |
| consideration(noun, reason, matter, agent) | |
| evidence(noun, support, action, information, base) | |
| ground(noun, law, regulation, cause, start) | |
| leaven(noun, cause, reason, matter, agent) |
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| APA | Smart Define. (2015). source thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/source/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "source thesaurus" https://smartdefine.org/source/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, source thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/source/thesaurus/synonyms>. |
| MLA | Smart Define. "source thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/source/thesaurus/synonyms> |