46 entries under endorsement topic. ×

20
confirmation(noun, check, information, mark, sign)
19
proof(noun, support, check, information, mark)
19
verification(noun, support, check, information, reason)
15
validation(noun, information, reason, display, true)
14
corroboration(noun, support, check, information, mark)
14
evidence(noun, support, information, mark, sign)
13
attestation(noun, information, mark, sign, reason)
12
authentication(noun, information, reason, true, picture)
12
demonstration(noun, information, mark, sign, reason)
12
testimony(noun, information, mark, sign, reason)
7
affirmation(noun, information, mark, sign, display)
6
support(noun, approval, statement, evidence, proof)
4
approval(noun, check, examination, standard, trial)
4
testament(noun, information, mark, sign, reason)
3
authorization(noun, approval, proof, verification)
3
witness(noun, information, mark, sign, reason)
2
justification(noun, proof, authentication)
2
testimonial(noun, information, mark, sign, true)
2
warrant(noun, information, reason, true, picture)
1
recognition(noun, approval, proof, verification)
<123>
11 years ago|5.1k views|share |citing 
APASmart Define. (2015). substantiation thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/substantiation/thesaurus/synonyms
ChicagoSmart Define. 2015. "substantiation thesaurus" https://smartdefine.org/substantiation/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, substantiation thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/substantiation/thesaurus/synonyms>.
MLASmart Define. "substantiation thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/substantiation/thesaurus/synonyms>