- Definitions|2
- Thesaurus|429
- Abbreviations|0
| entrance(cause, source, derivation) | |
| entry(cause, source, derivation) | |
| enzyme(noun, yeast, leavening) | |
| equidistance(root, intermediacy) | |
| essential(noun, foundation, keystone, kingpin, fulcrum) | |
| feeling(noun, cause, reason, object, purpose) | |
| ferment(noun, yeast, leavening) | |
| fermentation agent(noun, expression, yeast, leavening) | |
| footing(noun, cause, quick, source, origin) | |
| forging(cause, source, derivation) | |
| foundation stone(expression, foundation, keystone) | |
| fundamental(noun, cause, quick, source, origin) | |
| fungi | |
| fungus | |
| gavelock | |
| generator(noun, cause, connection, source, derivation) | |
| git go(expression, cause, source, derivation) | |
| gravamen(root, intermediacy) | |
| hairspring | |
| heald |
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| APA | Smart Define. (2015). mainspring thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/mainspring/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mainspring thesaurus" https://smartdefine.org/mainspring/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, mainspring thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/mainspring/thesaurus/synonyms>. |
| MLA | Smart Define. "mainspring thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/mainspring/thesaurus/synonyms> |