138 entries under reason topic. ×

9
assumption(noun, concept, law, action, understanding)
8
seat(noun, support, cause, start)
7
antecedent(noun, action, cause, object)
7
element(noun, feature, law, drop, part)
7
infrastructure(noun, organization, support, action, cause)
7
warrant(noun, action, cause, base)
6
argument(noun, concept, understanding, philosophy, cause)
6
factor(noun, drop, part, cause)
6
occasion(noun, cause, start, object)
6
proof(noun, action, cause, measure)
5
consideration(noun, study, cause, object)
5
determinant(noun, cause, object, base)
5
excuse(noun, cause, base, call)
5
explanation(noun, action, cause, base)
5
inspiration(noun, cause, influence, object)
5
stimulus(noun, cause, object, purpose)
4
beginning(noun, action, cause, start, top)
4
mainspring(noun, cause, start, idea)
4
matter(noun, organization, law, drop, area)
4
provocation(noun, cause, ground)
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APASmart Define. (2015). basis thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/basis/thesaurus/synonyms
ChicagoSmart Define. 2015. "basis thesaurus" https://smartdefine.org/basis/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, basis thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/basis/thesaurus/synonyms>.
MLASmart Define. "basis thesaurus" 22 December 2015. Web. 22 September 2026. <https://smartdefine.org/basis/thesaurus/synonyms>