2
data(noun, support, action, base, beginning)
2
decorum(noun, law, regulation, order, test)
2
decree(noun, law, regulation, order, test)
2
decretion(noun, law, regulation, order, test)
2
denouement
2
direction(noun, law, regulation, order, test)
2
dispatch
2
dome
2
gravestone
2
great point(expression, idiom, importance)
2
mainspring(noun, idea, essential, foundation, essence)
2
necessity
2
substance
1
accomplishment
1
achievement
1
action(noun, support, base, beginning, source)
1
antecedent(noun, support, action, base, beginning)
1
aphorism(noun, law, regulation, order, test)
1
apothegm(noun, law, regulation, order, test)
1
apse
11 years ago|6.5k views|share |citing 
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>