111 entries under core topic. ×

1
aspect(noun, quality, character, spirit, significance)
1
attribute(noun, quality, character, spirit, significance)
1
be-all and end-all(noun, expression, idiom, quality, character)
1
beginning bud(noun, expression, heart, center)
1
being(noun, quality, character, spirit, significance)
1
bosom(noun, emotion, heart, soul, mood)
1
bottom(noun, quality, cause, start, character)
1
bottom line(noun, expression, quality, body, character)
1
caliber(noun, quality, character, spirit, significance)
1
central part(noun, expression, emotion, soul, mood)
1
character(noun, quality, spirit, significance, emotion)
1
chief constituent(noun, expression, quality, character, spirit)
1
concern(noun, emotion, mood, temperament)
1
constitution(noun, quality, character, spirit, significance)
1
element(noun, quality, cause, character, spirit)
1
entity(noun, quality, character, spirit, significance)
1
essentia(noun, quality, character, spirit, significance)
1
essentiality(noun, quality, cause, start, character)
1
fiber(noun, force, quality, character, spirit)
1
form(noun, quality, character, spirit, significance)
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APASmart Define. (2015). nucleus thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nucleus/thesaurus/synonyms
ChicagoSmart Define. 2015. "nucleus thesaurus" https://smartdefine.org/nucleus/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, nucleus thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nucleus/thesaurus/synonyms>.
MLASmart Define. "nucleus thesaurus" 24 December 2015. Web. 24 September 2026. <https://smartdefine.org/nucleus/thesaurus/synonyms>