- Definitions|2
- Thesaurus|429
- Abbreviations|0
155 entries under noun topic. ×
| explanation(reason, element, matter, source) | |
| force | |
| generation | |
| genesis(cause, reason, element, matter) | |
| germ(cause, connection, source, origin) | |
| heart(cause, idea, base, essence) | |
| impulse(feeling, cause, reason, object) | |
| inception(cause, source, spring, origin) | |
| incitement(cause, reason, object, element) | |
| inducement(cause, influence, reason, object) | |
| influence(feeling, cause, reason, object) | |
| instigation(reason, element, matter, source) | |
| keynote | |
| maker(reason, element, matter, source) | |
| marrow(cause, idea, base, essence) | |
| motivation(cause, reason, object, element) | |
| nub(cause, idea, standard, source) | |
| nucleus(cause, connection, source, origin) | |
| object(cause, reason, element, matter) | |
| occasion(cause, start, reason, object) |
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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> |