| data(noun, support, action, base, beginning) | |
| decorum(noun, law, regulation, order, test) | |
| decree(noun, law, regulation, order, test) | |
| decretion(noun, law, regulation, order, test) | |
| denouement | |
| direction(noun, law, regulation, order, test) | |
| dispatch | |
| dome | |
| gravestone | |
| great point(expression, idiom, importance) | |
| mainspring(noun, idea, essential, foundation, essence) | |
| necessity | |
| substance | |
| accomplishment | |
| achievement | |
| action(noun, support, base, beginning, source) | |
| antecedent(noun, support, action, base, beginning) | |
| aphorism(noun, law, regulation, order, test) | |
| apothegm(noun, law, regulation, order, test) | |
| apse |
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| APA | Smart Define. (2015). keystone thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/keystone/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "keystone thesaurus" https://smartdefine.org/keystone/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, keystone thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/keystone/thesaurus/synonyms>. |
| MLA | Smart Define. "keystone thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/keystone/thesaurus/synonyms> |