- Definitions|1
- Thesaurus|109
- Abbreviations|0
83 entries under expression topic. ×
| original cause(reason, importance, significance) | |
| original reason(reason, importance, significance) | |
| overriding reason(reason, importance, significance) | |
| overriding term(reason, importance, significance) | |
| pacing factor(reason, importance, significance) | |
| pacing item(reason, importance, significance) | |
| primal cause(reason, importance, significance) | |
| primary cause(reason, importance, significance) | |
| primary reason(reason, importance, significance) | |
| prime cause(reason, importance, significance) | |
| prime mover(reason, importance, significance) | |
| principal cause(reason, importance, significance) | |
| radical turn(reason, importance, significance) | |
| reason fundamental(reason, importance, significance) | |
| root cause(reason, importance, significance) | |
| root motive(reason, importance, significance) | |
| root source(reason, importance, significance) | |
| shaping factor(reason, importance, significance) | |
| top priority(reason, importance, significance) | |
| turning point(reason, importance, significance) |
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| APA | Smart Define. (2013). first principle thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/first_principle/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "first principle thesaurus" https://smartdefine.org/first_principle/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2013, first principle thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/first_principle/thesaurus/synonyms>. |
| MLA | Smart Define. "first principle thesaurus" 18 May 2013. Web. 22 September 2026. <https://smartdefine.org/first_principle/thesaurus/synonyms> |