89 entries under reason topic. ×

48
evidence(noun, verb, expression, feature, support)
25
trial(noun, expression, action, study, understanding)
18
demonstration(noun, appearance, information, mark, cause)
15
test(noun, study, check, cause)
15
testimony(noun, information, mark, cause, knowledge)
14
reasoning(noun, case, claim, analysis)
13
reason(noun, support, action, cover, cause)
11
assurance(noun, mark, light, sign)
7
argument(noun, cause, idea, case)
7
case(noun, action, cover, cause)
6
basis(noun, action, cause, measure)
6
information(noun, mark, cause, sign)
6
why(noun, cause, informal, idea)
5
affirmation(noun, cover, information, mark, sign)
5
ground(noun, cause, idea, case)
5
grounds(noun, information, mark, cause, sign)
5
wherefore(noun, cause, idea, case)
4
goods(noun, information, mark, cause, knowledge)
4
premise(noun, support, action, cause)
4
statement(noun, cover, idea, case)
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APASmart Define. (2015). proof thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/proof/thesaurus/synonyms
ChicagoSmart Define. 2015. "proof thesaurus" https://smartdefine.org/proof/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, proof thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/proof/thesaurus/synonyms>.
MLASmart Define. "proof thesaurus" 22 December 2015. Web. 22 September 2026. <https://smartdefine.org/proof/thesaurus/synonyms>