69 entries under base topic. ×

1
bedrock(noun, support, action, cause, start)
1
beginning(noun, cause, start, stone)
1
bottom(noun, quality, cause, start, character)
1
cause(noun, support, action, start, influence)
1
chief ingredient(noun, expression, support, action)
1
element(noun, quality, cause, character, spirit)
1
essentiality(noun, quality, cause, start, character)
1
evidence(noun, support, action, beginning)
1
explanation(noun, support, action, point)
1
footing(noun, support, action, cause, start)
1
hard fact(noun, expression, support, action)
1
infrastructure(noun, support, action, cause, start)
1
justification(noun, support, action, beginning)
1
law(noun, support, action, beginning)
1
presumption(noun, support, action, beginning)
1
presupposition(noun, support, action, beginning)
1
principal element(noun, expression, support, action)
1
proof(noun, support, action, beginning)
1
reason(noun, support, action, cause, start)
1
sanction(noun, support, action, beginning)
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APASmart Define. (2015). nucleus thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nucleus/thesaurus/synonyms
ChicagoSmart Define. 2015. "nucleus thesaurus" https://smartdefine.org/nucleus/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, nucleus thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nucleus/thesaurus/synonyms>.
MLASmart Define. "nucleus thesaurus" 24 December 2015. Web. 23 September 2026. <https://smartdefine.org/nucleus/thesaurus/synonyms>