- Definitions|0
- Thesaurus|85
- Abbreviations|1
83 entries under expression topic. ×
| leading cause(reason, importance, significance) | |
| crucial thing(reason, importance, significance) | |
| crunch point(reason, importance, significance) | |
| deciding factor(reason, importance, significance) | |
| decisive factor(reason, importance, significance) | |
| decisive point(reason, importance, significance) | |
| determinant factor(reason, importance, significance) | |
| determinative factor(reason, importance, significance) | |
| dominant cause(reason, importance, significance) | |
| dominant factor(reason, importance, significance) | |
| driving factor(reason, importance, significance) | |
| first principle(reason, importance, significance) | |
| fundamental cause(reason, importance, significance) | |
| fundamental premise(reason, importance, significance) | |
| fundamental principle(reason, importance, significance) | |
| fundamental reason(reason, importance, significance) | |
| fundamental term(reason, importance, significance) | |
| governing factor(reason, importance, significance) | |
| initial cause(reason, importance, significance) | |
| issue main reason(reason, importance, significance) |
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| APA | Smart Define. (-0001). key idea thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/key_idea/thesaurus/synonyms |
| Chicago | Smart Define. -0001. "key idea thesaurus" https://smartdefine.org/key_idea/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define -0001, key idea thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/key_idea/thesaurus/synonyms>. |
| MLA | Smart Define. "key idea thesaurus" 30 November -0001. Web. 21 September 2026. <https://smartdefine.org/key_idea/thesaurus/synonyms> |