AskEraser  |  Settings
Ask.com   
 
 
authenticate

authenticate - verb

  1. To assure the certainty or validity of: attest, back(up), bear out, confirm, corroborate, evidence, justify, substantiate, testify(to), validate, verify, warrant. See support. true.
  2. To establish as true or genuine: bear out, confirm, corroborate, demonstrate, endorse, establish, evidence, prove, show, substantiate, validate, verify. See show. support.