'authenticate' definitions:
Definition of 'authenticate'
From: WordNet
verb
Establish the authenticity of something
Synonyms of 'authenticate'
From: Moby Thesaurus
- accept,
- accredit,
- affirm,
- amen,
- approve,
- attest,
- authorize,
- autograph,
- avouch,
- back,
- back up,
- bear out,
- bolster,
- buttress,
- certify,
- circumstantiate,
- confirm,
- corroborate,
- cosign,
- countersign,
- demonstrate,
- document,
- endorse,
- fortify,
- give permission,
- give the go-ahead,
- give the imprimatur,
- give thumbs up,
- initial,
- justify,
- notarize,
- OK,
- pass,
- pass on,
- pass upon,
- permit,
- probate,
- prove,
- ratify,
- reinforce,
- rubber stamp,
- sanction,
- say amen to,
- seal,
- second,
- sign,
- sign and seal,
- strengthen,
- subscribe to,
- substantiate,
- support,
- sustain,
- swear and affirm,
- swear to,
- test,
- try,
- undergird,
- undersign,
- underwrite,
- uphold,
- validate,
- verify,
- visa,
- vise,
- vouch for,
- warrant