125 entries under noun topic. ×
| support(approval, evidence, proof, justification) | |
| acceptance(approval, proof, verification, endorsement) | |
| assent(approval, evidence, authorization, proof) | |
| certificate(security, document, license, diploma) | |
| declaration(evidence, confirmation, verification) | |
| demonstration(information, reason, true, picture) | |
| indication(hint, evidence, witness, seal) | |
| permission(approval, authorization) | |
| seal(hint, indication, proof, confirmation) | |
| testament(information, reason, true, permit) | |
| approbation | |
| consent(approval, authorization, proof, verification) | |
| deposition(information, reason, picture, evidence) | |
| designation | |
| establishment(information, reason, picture, evidence) | |
| identification | |
| information(reason, picture, evidence, witness) | |
| mark(hint, indication, seal, stamp) | |
| stamp(hint, indication, proof, seal) | |
| statement |
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| APA | Smart Define. (2015). authentication thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/authentication/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "authentication thesaurus" https://smartdefine.org/authentication/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, authentication thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/authentication/thesaurus/synonyms>. |
| MLA | Smart Define. "authentication thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/authentication/thesaurus/synonyms> |