153 entries under source topic. ×

3
fundamental(noun, adjective, support, action, drop)
3
generator(noun, cause, derivation)
3
inspiration(noun, cause, influence, reason, object)
3
mainspring(noun, cause, reason, idea, object)
3
stimulus(noun, cause, reason, object)
2
action(noun, support, cause, base, beginning)
2
ancestry(noun, cause, origin, derivation)
2
author(noun, person, cause, reason, base)
2
egg(cause, beginning, origin, derivation)
2
embryo(cause, beginning, origin, derivation)
2
essential(noun, adjective, support, action, base)
2
keynote(noun, support, action, idea, base)
2
keystone(noun, support, action, idea, base)
2
parentage(noun, cause, derivation)
2
principle(noun, support, action, drop, part)
2
progenitor(person, cause, derivation, father)
2
whence
1
account(noun, cause, reason, base, call)
1
agent(noun, cause, influence, reason, base)
1
aim(noun, cause, reason, object, matter)
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APASmart Define. (2016). root thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/root/thesaurus/synonyms
ChicagoSmart Define. 2016. "root thesaurus" https://smartdefine.org/root/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, root thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/root/thesaurus/synonyms>.
MLASmart Define. "root thesaurus" 2 March 2016. Web. 20 September 2026. <https://smartdefine.org/root/thesaurus/synonyms>