- Definitions|2
- Thesaurus|429
- Abbreviations|0
155 entries under noun topic. ×
| fundamental(cause, quick, source, origin) | |
| generator(cause, connection, source, derivation) | |
| idea(cause, reason, object, standard) | |
| incentive(feeling, cause, reason, object) | |
| infrastructure(cause, quick, source, origin) | |
| intent(feeling, cause, reason, object) | |
| key element(expression, essential, foundation, keystone) | |
| leavening | |
| linchpin(idea, essential, foundation, essence) | |
| main ingredient(expression, essential, foundation, keystone) | |
| mainstay(essential, foundation, keystone, kingpin) | |
| motivating force(expression, impetus) | |
| motive force(expression, impetus) | |
| originator(reason, element, matter, source) | |
| parent(cause, connection, source, derivation) | |
| parentage(cause, connection, source, derivation) | |
| pillar(essential, foundation, keystone, kingpin) | |
| progenitor(cause, connection, source, derivation) | |
| rationale(feeling, cause, reason, object) | |
| reactant(yeast, leavening) |
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| APA | Smart Define. (2015). mainspring thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/mainspring/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mainspring thesaurus" https://smartdefine.org/mainspring/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, mainspring thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/mainspring/thesaurus/synonyms>. |
| MLA | Smart Define. "mainspring thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/mainspring/thesaurus/synonyms> |