364 entries under noun topic. ×
| fountainhead(person, cause, start, rise) | |
| head(start, beginning, opening, introduction) | |
| hierarchy(company, place, set, kind) | |
| launching(start, beginning, impregnation, fertilization) | |
| mainspring(verb, cause, start, reason) | |
| nascence(start, birth) | |
| paternity(cause, foundation, basis, family) | |
| stem(cause, beginning, source) | |
| stemma | |
| babyhood(beginning, birth, dawn, conception) | |
| core(cause, start, base, beginning) | |
| day one(expression, cause, start, top) | |
| entrance(cause, beginning, source, derivation) | |
| entry(cause, beginning, source, derivation) | |
| generation(family, blood, genus, clan) | |
| generator(cause, source, basis, derivation) | |
| heritage(family, history, descent, background) | |
| impulse(verb, cause, source, basis) | |
| inducement(cause, reason, base, matter) | |
| inspiration(cause, source, basis, spring) |
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| APA | Smart Define. (2015). origin thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/origin/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "origin thesaurus" https://smartdefine.org/origin/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, origin thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/origin/thesaurus/synonyms>. |
| MLA | Smart Define. "origin thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/origin/thesaurus/synonyms> |