| regulation(noun, law, order, test, standard) | |
| reinforcement(noun, foundation) | |
| rudiment(noun, support, action, base, beginning) | |
| ruling(noun, law, regulation, order, test) | |
| salient point | |
| samara | |
| sanction(noun, support, action, base, beginning) | |
| security(noun, support, action, base, beginning) | |
| skewback | |
| source(noun, support, action, idea, base) | |
| span | |
| spanner | |
| standard(noun, law, regulation, order, idea) | |
| starting point(noun, expression, base, beginning, source) | |
| statute(noun, law, regulation, order, test) | |
| stone | |
| substantive point | |
| substratum(noun, support, action, base, beginning) | |
| tenet(noun, law, regulation, order, test) | |
| test(noun, law, regulation, order, standard) |
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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> |