80 entries under reason topic. ×
| end(noun, resolve, base, element) | |
| evidence(noun, cause, idea, base) | |
| explanation(noun, cause, base, element) | |
| inducement(noun, cause, base, call) | |
| leaven(noun, cause, element, matter) | |
| mainspring(noun, cause, start, base) | |
| matter(noun, organization, element, arrangement) | |
| motivation(noun, cause, element, matter) | |
| motive(noun, cause, start, base) | |
| necessity(noun, cause, ground) | |
| originator(noun, cause, element, matter) | |
| prime mover(noun, expression, idiom, cause) | |
| producer(noun, cause, element, matter) | |
| proof(noun, cause, measure, idea) | |
| whyfor(noun, cause, base, call) | |
| aim(noun, element, matter, source) | |
| chapter and verse(expression, idiom, basis, justification) | |
| demonstration(suggestion, basis, theory, justification) | |
| doer(noun, element, matter, source) | |
| dope(basis, justification) |
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| APA | Smart Define. (2015). foundation thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/foundation/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "foundation thesaurus" https://smartdefine.org/foundation/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, foundation thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/foundation/thesaurus/synonyms>. |
| MLA | Smart Define. "foundation thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/foundation/thesaurus/synonyms> |