To verify is to confirm the accuracy or truth of something.
To support or establish the certainty or validity of; verify:
To establish the soundness, accuracy, or legitimacy of:
To affirm as accurate, genuine, or true.
To write one's signature on the back of (a check) to obtain the amount payable or to make the amount payable available to a third party or to the bearer.
(Copulative) To turn out to be.
To constitute supporting evidence; give substantiation:
To cause to move backward or in a reverse direction:
To make more certain the validity of; confirm; bolster; support
To make evident; indicate; show
To make a statement based on personal knowledge in support of an asserted fact; bear witness:
To guarantee (a product).
Demonstrate means to march or protest against something with a group.
To set up (a government, nation, business, etc.); found; institute
Show is defined as to bring into view, teach, or display.
To verify; to make good; to substantiate; to establish; to sustain.
(Biol.) With the same inherited trait or traits as a parent; without variation
To prove, as by reference to documents
Find another word for authenticate. In this page you can discover 25 synonyms, antonyms, idiomatic expressions, and related words for authenticate, like: verify, confirm, validate, See syn. study at, attest, endorse, justify, prove, vouch, back and bear out.