70 entries under kernel topic. ×

22
heart(noun, good, part, quality, understanding)
21
core(noun, adjective, good, quality, understanding)
19
pith(noun, quality, body, cause, start)
18
essence(noun, cause, start, spirit, substance)
18
nucleus(noun, quality, body, cause, start)
17
meat(noun, good, quality, understanding, body)
17
substance(noun, good, quality, understanding, body)
16
gist(noun, good, understanding, body, strength)
15
point(noun, quality, understanding, character, strength)
15
marrow(noun, quality, cause, start, character)
13
crux(noun, part, quality, body, cause)
11
nitty-gritty(noun, adjective, good, end, quality)
11
quintessence(noun, quality, cause, start, character)
6
bottom(noun, adjective, quality, cause, start)
6
quiddity(noun, quality, character, spirit, significance)
6
soul(noun, quality, cause, start, character)
5
root(noun, adjective, quality, body, cause)
5
spirit(noun, quality, character, substance, idea)
5
stuff(noun, good, quality, understanding, cause)
4
basis(noun, quality, body, cause, start)
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APASmart Define. (2015). nub thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/nub/thesaurus/synonyms
ChicagoSmart Define. 2015. "nub thesaurus" https://smartdefine.org/nub/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, nub thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/nub/thesaurus/synonyms>.
MLASmart Define. "nub thesaurus" 24 October 2015. Web. 22 September 2026. <https://smartdefine.org/nub/thesaurus/synonyms>