66 entries under foundation topic. ×
| fundamental(noun, adjective, support, action, characteristic) | |
| core(adjective, support, action, base, importance) | |
| essence(noun, nature, feature, support, action) | |
| principle(noun, adjective, support, action, drop) | |
| rudiment(noun, support, action, drop, part) | |
| heart(noun, support, action, base, importance) | |
| cornerstone(noun, element, keystone, kingpin) | |
| keystone(noun, support, action, base, importance) | |
| axiom(noun, support, action, base, beginning) | |
| base(noun, support, action, part, beginning) | |
| nucleus(noun, support, action, base, importance) | |
| basis(noun, action, base, beginning, heart) | |
| bedrock(noun, support, action, base, beginning) | |
| center(noun, adjective, support, action, base) | |
| crux(noun, support, action, base, beginning) | |
| important part(expression, idiom, importance, source) | |
| postulate(noun, support, action, condition, base) | |
| action(noun, support, base, beginning, source) | |
| antecedent(noun, support, action, base, beginning) | |
| assumption(noun, support, action, base, beginning) |
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| APA | Smart Define. (2016). essential thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/essential/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, essential thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>. |
| MLA | Smart Define. "essential thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms> |