52 entries under root topic. ×
| foundation(noun, base, beginning, source, essential) | |
| backbone(noun, support, action, base, beginning) | |
| basis(noun, law, regulation, action, idea) | |
| principle(noun, support, action, idea, base) | |
| core(noun, support, action, idea, base) | |
| essence(noun, support, action, idea, base) | |
| fundamental(noun, law, support, regulation, action) | |
| heart(noun, support, action, idea, base) | |
| support(noun, action, base, beginning, source) | |
| keynote(noun, law, support, regulation, action) | |
| base(noun, support, action, beginning, source) | |
| crux(noun, support, action, idea, base) | |
| essential(noun, support, action, base, beginning) | |
| bedrock(noun, support, action, base, beginning) | |
| data(noun, support, action, base, beginning) | |
| action(noun, support, base, beginning, source) | |
| antecedent(noun, support, action, base, beginning) | |
| assumption(noun, support, action, base, beginning) | |
| authority(noun, support, action, base, beginning) | |
| axiom(noun, law, support, regulation, action) |
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| APA | Smart Define. (2015). keystone thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/keystone/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "keystone thesaurus" https://smartdefine.org/keystone/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, keystone thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/keystone/thesaurus/synonyms>. |
| MLA | Smart Define. "keystone thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/keystone/thesaurus/synonyms> |