107 entries under start topic. ×
| fountainhead(noun, person, cause, rise) | |
| head(noun, beginning, opening, introduction) | |
| launching(noun, beginning, impregnation, fertilization) | |
| mainspring(noun, verb, cause, reason) | |
| nascence(noun, birth) | |
| core(noun, cause, base, beginning) | |
| day one(noun, expression, cause, top) | |
| kickoff(noun, top, base, beginning) | |
| outbreak(noun, cause, beginning, source) | |
| square one(noun, expression, cause, top) | |
| formation(noun, beginning, birth, dawn) | |
| founding | |
| reason(noun, regulation, cause, base) | |
| rootstock(noun, point) | |
| arrival(beginning, commencement) | |
| fundamental(noun, adjective, law, regulation, cause) | |
| takeoff(noun, top, beginning, opening) | |
| advent | |
| ground(noun, law, regulation, cause) | |
| instigation(noun, reason, matter, opening) |
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| APA | Smart Define. (2015). origin thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/origin/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "origin thesaurus" https://smartdefine.org/origin/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, origin thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/origin/thesaurus/synonyms>. |
| MLA | Smart Define. "origin thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/origin/thesaurus/synonyms> |