Synonyms of authenticate in English:

authenticate


See definition of authenticate

verb

1‘he must produce evidence which will authenticate his claim’

SYNONYMS

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’

SYNONYMS

validate, ratify, confirm, seal, sanction, endorse, guarantee