72 entries under foundation topic. ×
| core(noun, support, action, place, quality) | |
| heart(noun, support, action, place, part) | |
| pith(noun, place, quality, body, cause) | |
| essence(noun, support, action, place, cause) | |
| nub(noun, quality, body, cause, start) | |
| marrow(noun, place, quality, cause, start) | |
| pivot(noun, support, place, body, point) | |
| crux(noun, support, action, quality, body) | |
| middle(noun, place, body, substance, emotion) | |
| center(noun, support, action, place, body) | |
| germ(noun, quality, cause, start, character) | |
| substance(noun, quality, body, cause, start) | |
| root(noun, support, action, place, quality) | |
| embryo(noun, cause, start, influence, base) | |
| principle(noun, support, action, quality, cause) | |
| nexus(noun, support, action, point, base) | |
| seed(noun, cause, start, influence, base) | |
| seat(noun, place, cause, start, base) | |
| egg(noun, cause, influence, base, connection) | |
| premise(noun, support, action, base, beginning) |
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| APA | Smart Define. (2015). nucleus thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nucleus/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "nucleus thesaurus" https://smartdefine.org/nucleus/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, nucleus thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nucleus/thesaurus/synonyms>. |
| MLA | Smart Define. "nucleus thesaurus" 24 December 2015. Web. 24 September 2026. <https://smartdefine.org/nucleus/thesaurus/synonyms> |