81 entries under base topic. ×
| core(noun, support, action, quality, character) | |
| inspiration(noun, feeling, cause, energy, spirit) | |
| mainspring(noun, cause, reason, idea) | |
| pith(noun, quality, feeling, character, energy) | |
| substance(noun, quality, feeling, character, energy) | |
| theory(noun, concept, support, action, philosophy) | |
| marrow(noun, quality, feeling, character, energy) | |
| occasion(noun, cause, influence, reason) | |
| quintessence(noun, quality, feeling, character, energy) | |
| underpinning(noun, support, action, beginning) | |
| antecedent(noun, support, action, cause, reason) | |
| bottom(noun, nature, quality, feeling, character) | |
| footing(noun, support, action, beginning) | |
| motive(noun, action, cause, reason, idea) | |
| nucleus(noun, support, action, quality, cause) | |
| rudiment(noun, law, support, action, drop) | |
| substratum(noun, support, action, beginning) | |
| agent(noun, cause, reason, matter) | |
| author(noun, cause, reason, matter) | |
| bedrock(noun, support, action, beginning) |
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| APA | Smart Define. (2015). principle thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/principle/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "principle thesaurus" https://smartdefine.org/principle/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, principle thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/principle/thesaurus/synonyms>. |
| MLA | Smart Define. "principle thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/principle/thesaurus/synonyms> |