486 entries under noun topic. ×
| commencement(cause, start, rise, top) | |
| parent(person, cause, start, point) | |
| seed(cause, supply, beginning, stone) | |
| base(support, regulation, action, part) | |
| germ(cause, start, base, beginning) | |
| origination(cause, start, top, point) | |
| originator(person, cause, point, reason) | |
| reference(person, matter, suggestion, mention) | |
| well-spring | |
| wellspring(person, cause, start, point) | |
| antecedent(support, action, cause, point) | |
| authority(support, action, person, cause) | |
| determinant(cause, point, reason, base) | |
| expert(person, cause, point, beginning) | |
| foundation(law, regulation, cause, start) | |
| informant(cause, point, beginning, sneak) | |
| outset(cause, start, rise, top) | |
| provenience(cause, start, point, beginning) | |
| ancestry(place, cause, position, root) | |
| onset(cause, start, rise, top) |
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| APA | Smart Define. (2015). source thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/source/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "source thesaurus" https://smartdefine.org/source/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, source thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/source/thesaurus/synonyms>. |
| MLA | Smart Define. "source thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/source/thesaurus/synonyms> |