- Definitions|3
- Thesaurus|871
- Abbreviations|0
63 entries under sign topic. ×
| say amen to(verb, expression, idiom) | |
| sign off on(expression, idiom, support, back) | |
| subscribe(verb, support, back, explain) | |
| underpin(verb, support, back, explain) | |
| undersign | |
| argue(verb, state, show, confirm) | |
| bear witness(verb, expression, state, show) | |
| buy(verb, support, back, prove) | |
| lap up(expression, support, back, explain) | |
| make sure(verb, expression, support, back) | |
| thumbs up(expression, support, back, prove) | |
| announce(verb, state, show, confirm) | |
| bespeak(verb, state, endorse, appear) | |
| depone(verb, state, endorse, appear) | |
| give evidence(verb, expression, state, show) | |
| give testimony(verb, expression, endorse, countersign) | |
| put John Hancock on(verb, expression, idiom) | |
| put signature on(verb, expression, idiom) | |
| say under oath(verb, expression, idiom, endorse) | |
| sign on dotted line(verb, expression, idiom) |
For more, visit
Authenticate on
Power Thesaurus
| APA | Smart Define. (2015). authenticate thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/authenticate/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "authenticate thesaurus" https://smartdefine.org/authenticate/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, authenticate thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/authenticate/thesaurus/synonyms>. |
| MLA | Smart Define. "authenticate thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/authenticate/thesaurus/synonyms> |