- Definitions|3
- Thesaurus|871
- Abbreviations|0
63 entries under sign topic. ×
| vouch for(verb, expression, support, show, praise) | |
| witness(verb, support, state, show, determine) | |
| underwrite(verb, support, praise, favor, back) | |
| bless(verb, support, praise, favor, back) | |
| circumstantiate(verb, support, determine, back) | |
| give the go-ahead(expression, idiom, support, praise, favor) | |
| make good(verb, expression, idiom, support, back) | |
| autograph | |
| betoken(verb, state, endorse, appear) | |
| cosign | |
| debunk(verb, support, show, back) | |
| depose(verb, state, endorse, appear) | |
| explain(verb, support, show, determine, back) | |
| give green light(expression, idiom, support, praise, favor) | |
| give high sign(expression, idiom, support, back) | |
| give stamp of approval(expression, idiom, support, back) | |
| give the nod(expression, idiom, support, praise, favor) | |
| indicate(verb, state, show, display) | |
| okay(verb, support, state, praise, favor) | |
| rubber-stamp(verb, support, state, praise, favor) |
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| APA | Smart Define. (2015). authenticate thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/authenticate/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "authenticate thesaurus" https://smartdefine.org/authenticate/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, authenticate thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/authenticate/thesaurus/synonyms>. |
| MLA | Smart Define. "authenticate thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/authenticate/thesaurus/synonyms> |