Definition of verify in English:



[with object]
  • 1Make sure or demonstrate that (something) is true, accurate, or justified.

    ‘his conclusions have been verified by later experiments’
    with clause ‘‘Can you verify that the guns are licensed?’’
    • ‘Consider the statement that the only valid knowledge is that which can be empirically verified.’
    • ‘Another scientist pointed out that this study verified what many other studies had found.’
    • ‘What's great about technology today is that you can verify who they are pretty fast.’
    • ‘The integrity of the new constructs was verified by DNA sequencing.’
    • ‘Why should one take on faith any tenets that haven't been verified by personal observation or experimentation?’
    • ‘Distance gap and projected time gap data will be verified here using a similar rationale.’
    • ‘Also verify what level of software support is purchased.’
    • ‘Absence of the wild-type gene was also verified by PCR at this point.’
    • ‘He did not participate in its preparation and did not verify its accuracy.’
    • ‘They are the ones who made a poor decision based on insufficiently verified claims.’
    • ‘Although widely accepted in public, the discoidal structure has not been verified experimentally.’
    • ‘The results were also verified by Northern blot analysis.’
    • ‘And he or she can easily verify what he is claiming is true or false.’
    • ‘The model results were subsequently verified experimentally, and others are readily testable.’
    • ‘No scientific and independent sources have so far verified the claims of either side.’
    • ‘They don't have to verify the authenticity of documents provided by job applicants.’
    • ‘All runners are then scanned before each race or sale to verify their identity.’
    • ‘Cameras and recorders are in place to verify who actually catches the million dollar ball.’
    • ‘We have experimentally verified the utility of the microscope dynamic light scattering imaging technique.’
    • ‘However, there was no way to independently verify the identity of the men killed and arrested on Saturday night.’
    substantiate, confirm, prove, show to be true, corroborate, back up, support, uphold, evidence, establish, demonstrate, demonstrate the truth of, show, show beyond doubt, attest to, testify to, validate, authenticate, endorse, certify, accredit, ratify, warrant, vouch for, bear out, bear witness to, give credence to, give force to, give weight to, lend weight to, justify, vindicate
    View synonyms
    1. 1.1Law Swear to or support (a statement) by affidavit.
      • ‘No one went through the statements from Ms Cosgrove in an attempt to verify her allegations.’
      • ‘There was filed as Exhibit 10 the application verified by statutory declaration.’
      • ‘This week, the US Supreme Court upheld an appeal court ruling that verified the original District Court verdict.’
      • ‘Ms Amin verified her witness statements and answered some additional questions in chief.’
      • ‘He has provided two witness statements and has verified the truth of the Particulars of Claim.’


Middle English (as a legal term): from Old French verifier, from medieval Latin verificare, from verus ‘true’.