50 entries under source topic. ×

5
base(noun, cause, origin, bottom)
3
bedrock(noun, cause, quick, origin)
3
root(noun, cause, base, core)
2
basis(law, cause, foundation, basic)
2
essence(cause, origin)
2
footing(cause, quick, origin, stem)
2
foundation(law, cause, basic, origin)
2
ground(cause, origin)
2
groundwork(cause, quick, origin, stem)
2
pith(cause, origin)
2
seat(cause, quick, origin, stem)
2
substratum(cause, quick, origin, stem)
2
underpinning(cause, quick, origin, stem)
1
heart(law, cause, foundation, basic)
1
starting point(expression, cause, quick, origin)
0
beginnings(cause, quick, origin, stem)
0
cause
0
center(cause, origin)
0
core(cause, origin)
0
crux(cause, origin)
<123>
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APASmart Define. (2015). rock bottom thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rock_bottom/thesaurus/synonyms
ChicagoSmart Define. 2015. "rock bottom thesaurus" https://smartdefine.org/rock_bottom/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, rock bottom thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rock_bottom/thesaurus/synonyms>.
MLASmart Define. "rock bottom thesaurus" 9 July 2015. Web. 22 September 2026. <https://smartdefine.org/rock_bottom/thesaurus/synonyms>