verify
     v 1: confirm the truth of; "Please verify that the doors are
          closed"; "verify a claim"
     2: verify or regulate by conducting a parallel experiment or
        comparing with another standard, of scientific
        experiments; "Are you controlling for the temperature?"
        [syn: {control}]
     3: attach or append a legal verification to (a pleading or
        petition)
     4: to declare or affirm solemnly and formally as true; "Before
        God I swear I am innocent" [syn: {affirm}, {assert}, {avow},
         {aver}, {swan}, {swear}]
     [also: {verified}]
Source: WordNet® 2.0