1. Validate
2. Corroborate
3. Affirm
4. Confirm
5. Substantiate
6. Ratify
7. Certify
8. Endorse
9. Testify
10. Legitimize
11. Sanction
12. Authenticate
13. Vouch
14. Assert
15. Prove
16. Justify
17. Demonstrate
18. Establish
19. Uphold
20. Reconfirm
21. Reaffirm
22. Affix
23. Reconcile
24. Bolster
25. Revalidate
26. Reassure
27. Ratification
28. Confirmation
29. Validation
30. Endorsement

Finding the right synonym for the word “verify” can be a challenge. Whether you are writing for a blog, website, or other project, it is important to make sure that the words you use are the best fit for the context. Here are some of the best ideas for synonyms for “verify”: validate, corroborate, affirm, confirm, substantiate, ratify, certify, endorse, testify, legitimize, sanction, authenticate, vouch, assert, prove, justify, demonstrate, establish, uphold, reconfirm, reaffirm, affix, reconcile, bolster, revalidate, reassure, ratification, confirmation, validation, and endorsement. Each of these words has a slightly different meaning, so it is important to consider the context of your writing and select the word that best conveys the meaning you are trying to express.