Synonyms of authenticate in English:

authenticate

verb

  • 1 he must produce evidence which will authenticate his claim
    verify, validate, prove to be genuine, certify;
    substantiate, prove, be proof of, give proof of, corroborate, confirm, support, evidence, attest to, bear out, give credence to, back up;
    document
  • 2 a mandate authenticated by an absolute majority of the popular vote
    validate, ratify, confirm, seal, sanction, endorse, guarantee
  • Definition of authenticate in:

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    Word of the day retroflex
    Pronunciation: ˈretrəˌfleks
    adjective
    turned backward