- Definitions|3
- Thesaurus|871
- Abbreviations|0
217 entries under verb topic. ×
| check(support, show, determine, back) | |
| document(noun, show, determine, detail) | |
| justify(support, show, determine, back) | |
| sanction(support, state, favor, back) | |
| accredit(support, state, praise, favor) | |
| sustain(support, show, determine, praise) | |
| notarize(sign, authorize, endorse, witness) | |
| uphold(support, show, determine, favor) | |
| vouch(support, state, back, sign) | |
| accept(approve, authorize, sanction, legalize) | |
| back up(expression, support, praise, favor) | |
| countersign(state, show, sign, approve) | |
| guarantee(support, state, praise, settle) | |
| permit(approve, authorize) | |
| seal(show, settle, sign, confirm) | |
| testify(support, state, show, determine) | |
| vouch for(expression, support, show, praise) | |
| witness(support, state, show, determine) | |
| assent(noun, approve, authorize) | |
| avouch |
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| APA | Smart Define. (2015). authenticate thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/authenticate/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "authenticate thesaurus" https://smartdefine.org/authenticate/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, authenticate thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/authenticate/thesaurus/synonyms>. |
| MLA | Smart Define. "authenticate thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/authenticate/thesaurus/synonyms> |