80 entries under reason topic. ×
| base(noun, organization, concept, support, regulation) | |
| basis(noun, organization, concept, law, support) | |
| groundwork(noun, organization, support, hold, study) | |
| underpinning(noun, organization, support, hold, cause) | |
| root(noun, organization, support, body, cause) | |
| footing(noun, organization, support, hold, cause) | |
| ground(noun, law, support, regulation, cause) | |
| origin(noun, law, regulation, body, cause) | |
| substratum(noun, support, hold, cause, start) | |
| cause(noun, regulation, cause, start, rule) | |
| infrastructure(noun, organization, support, cause, start) | |
| principle(noun, organization, concept, law, philosophy) | |
| bedrock(noun, support, cause, start) | |
| source(noun, law, regulation, cause, start) | |
| justification(noun, cause, substance, base) | |
| warrant(noun, cause, base, true) | |
| beginning(noun, cause, start, base) | |
| grounds(noun, concept, understanding, philosophy, cause) | |
| seat(noun, support, cause, start) | |
| occasion(noun, cause, start, base) |
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| APA | Smart Define. (2015). foundation thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/foundation/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "foundation thesaurus" https://smartdefine.org/foundation/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, foundation thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/foundation/thesaurus/synonyms>. |
| MLA | Smart Define. "foundation thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/foundation/thesaurus/synonyms> |