Authenticate - synonyms

Total 66 synonym synonyms found for authenticate.

OK

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

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