151 entries under source topic. ×
| agent(noun, cause, reason, element, matter) | |
| alpha(noun, cause, start, beginning, opening) | |
| assumption(noun, concept, law, regulation, understanding) | |
| author(noun, cause, reason, element, matter) | |
| axiom(noun, law, regulation, rule, base) | |
| commencement(noun, cause, start, beginning, opening) | |
| fountain(cause, start, beginning, basis) | |
| genesis(noun, cause, start, development, reason) | |
| outbreak(cause, start, beginning, origin) | |
| outset(noun, cause, start, beginning, opening) | |
| postulate(noun, concept, law, regulation, understanding) | |
| premise(noun, concept, understanding, philosophy, cause) | |
| presupposition(noun, idea, base, suggestion, beginning) | |
| purpose(noun, cause, reason, element, matter) | |
| rock bottom(expression, law, cause, basic) | |
| spring(noun, cause, reason, element, matter) | |
| square one(noun, expression, cause, start, base) | |
| stem(cause, origin) | |
| theorem(noun, concept, law, regulation, understanding) | |
| account(noun, cause, reason, base, call) |
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| APA | Smart Define. (2015). foundation thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/foundation/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "foundation thesaurus" https://smartdefine.org/foundation/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, foundation thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/foundation/thesaurus/synonyms>. |
| MLA | Smart Define. "foundation thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/foundation/thesaurus/synonyms> |