126 entries under core topic. ×

21
heart(noun, support, action, part, quality)
19
essence(noun, organization, support, action, area)
17
pith(noun, organization, area, part, quality)
13
gist(noun, organization, area, part, strength)
13
nub(noun, part, quality, body, cause)
12
kernel(noun, part, quality, character, strength)
12
meat(noun, part, quality, character, strength)
12
substance(noun, organization, area, part, quality)
10
point(noun, support, quality, pass, character)
9
nucleus(noun, support, action, quality, body)
8
marrow(noun, quality, cause, start, character)
7
basis(noun, organization, action, area, quality)
5
quintessence(noun, quality, cause, start, character)
4
focus(noun, strength, effect, subject, emotion)
4
base(adjective, organization, support, action, quality)
4
hub(noun, support, point, emotion, heart)
4
nitty-gritty(noun, part, quality, character, strength)
3
spirit(noun, quality, character, significance, emotion)
3
bottom line(noun, expression, part, spirit, idea)
3
center(noun, support, action, body, cause)
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APASmart Define. (2015). crux thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/crux/thesaurus/synonyms
ChicagoSmart Define. 2015. "crux thesaurus" https://smartdefine.org/crux/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, crux thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/crux/thesaurus/synonyms>.
MLASmart Define. "crux thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/crux/thesaurus/synonyms>