1
regulation(noun, law, order, test, standard)
1
reinforcement(noun, foundation)
1
rudiment(noun, support, action, base, beginning)
1
ruling(noun, law, regulation, order, test)
1
salient point
1
samara
1
sanction(noun, support, action, base, beginning)
1
security(noun, support, action, base, beginning)
1
skewback
1
source(noun, support, action, idea, base)
1
span
1
spanner
1
standard(noun, law, regulation, order, idea)
1
starting point(noun, expression, base, beginning, source)
1
statute(noun, law, regulation, order, test)
1
stone
1
substantive point
1
substratum(noun, support, action, base, beginning)
1
tenet(noun, law, regulation, order, test)
1
test(noun, law, regulation, order, standard)
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APASmart Define. (2015). keystone thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/keystone/thesaurus/synonyms
ChicagoSmart Define. 2015. "keystone thesaurus" https://smartdefine.org/keystone/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, keystone thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/keystone/thesaurus/synonyms>.
MLASmart Define. "keystone thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/keystone/thesaurus/synonyms>