69 entries under base topic. ×
| core(noun, support, action, place, quality) | |
| heart(noun, support, action, place, part) | |
| focus(noun, center, centre, place, quick) | |
| pith(noun, place, quality, body, cause) | |
| essence(noun, support, action, place, cause) | |
| nub(noun, quality, body, cause, start) | |
| marrow(noun, place, quality, cause, start) | |
| crux(noun, support, action, quality, body) | |
| 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) | |
| principle(noun, support, action, quality, cause) | |
| foundation(noun, body, cause, start, substance) | |
| nexus(noun, support, action, point) | |
| seed(noun, cause, start, influence) | |
| seat(noun, place, cause, start) | |
| egg(noun, cause, influence, connection) | |
| premise(noun, support, action, beginning) |
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| APA | Smart Define. (2015). nucleus thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nucleus/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "nucleus thesaurus" https://smartdefine.org/nucleus/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, nucleus thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nucleus/thesaurus/synonyms>. |
| MLA | Smart Define. "nucleus thesaurus" 24 December 2015. Web. 23 September 2026. <https://smartdefine.org/nucleus/thesaurus/synonyms> |