Synonyms|282Antonyms|7|Broader|5Narrower|1Related|54
3
pillar(noun, hold, block, back, base)
3
rudiment(noun, law, base, foundation, basic)
3
underpinning(noun, hold, block, back, base)
2
alkali
2
bedrock(noun, base, basis)
2
headstone
2
axiom(noun, law, foundation, basic, stipulation)
2
column(noun, hold, block, back, base)
2
element(noun, law, foundation, basic, stipulation)
2
infrastructure(noun, base, basis)
2
kernel
2
linchpin(noun, idea, element, foundation, essence)
2
mainspring(noun, idea, element, standard, foundation)
2
mainstay(noun, element, foundation, basis, pillar)
2
pith
2
rock(noun, foundation)
2
substance
2
substratum(noun, hold, block, back, base)
2
substructure(noun, hold, block, back, base)
2
support(noun, base, foundation, basis, brace)
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APASmart Define. (2015). cornerstone thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/cornerstone/thesaurus/synonyms
ChicagoSmart Define. 2015. "cornerstone thesaurus" https://smartdefine.org/cornerstone/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, cornerstone thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/cornerstone/thesaurus/synonyms>.
MLASmart Define. "cornerstone thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/cornerstone/thesaurus/synonyms>