verb (v)

• confirm the truth of(verb.cognition)

  Example:
  Please verify that the doors are closed.
  Verify a claim.
  

  source: wordnet30
• check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard(verb.social)

  Synonym:
  control
  

  source: wordnet30
• attach or append a legal verification to (a pleading or petition)(verb.communication)

  source: wordnet30
• to declare or affirm solemnly and formally as true(verb.communication)

  Synonym:
  affirm, assert, aver, avow, swan, swear
  

  source: wordnet30
• To prove to be true or correct; to establish the truth of; to confirm; to substantiate.(verb)

  source: webster1913