| notarization(engineering, registration) | |
| okay(proof, verification, endorsement, authentication, substantiation) | |
| safe-conduct(noun, permit, grant, key, authorization) | |
| second | |
| stamp of approval(expression, idiom, approval, encouragement, proof) | |
| testimonial(proof, verification, endorsement, authentication, substantiation) | |
| witness(approval, proof, verification, endorsement, validation) | |
| accredit | |
| admission(approval, proof, verification, endorsement, validation) | |
| affidavit | |
| affirmance | |
| agreement(noun, approval, proof, verification, endorsement) | |
| allowance(noun, establishment, authorization, document, license) | |
| approbation | |
| authorise | |
| autograph | |
| bill of health(expression, idiom) | |
| certificate of proficiency(expression, idiom) | |
| christcross | |
| cipher |
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| APA | Smart Define. (2015). visa thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/visa/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "visa thesaurus" https://smartdefine.org/visa/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, visa thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/visa/thesaurus/synonyms>. |
| MLA | Smart Define. "visa thesaurus" 11 October 2015. Web. 21 September 2026. <https://smartdefine.org/visa/thesaurus/synonyms> |