To make firmer; strengthen:
To affirm or approve, usually after the fact.
To make (a check, etc.) payable to another person by thus signing one's name and specifying the payee
To acknowledge in writing on the face of (a check) that the signature of the maker is genuine and that there are sufficient funds on deposit for its payment.
To certify or attest to (the validity of a signature on a document, for example) as a notary public.
To give permission for (something); sanction:
To substantiate is to prove a claim to be true or back up a claim with evidence.
To verify is to confirm the accuracy or truth of something.
(Copulative) To turn out to be.
To consent to officially or formally; confirm or sanction:
(Law) To show an adequate reason for something done
To engage by written contract; sign on
To work as a veterinarian
Refuse is defined as to reject or to decide to not do something.
To refuse to accept, submit to, believe, or make use of:
To forbid, prohibit, or decide against:
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 make invalid; deprive of legal force
To apply postage stamps to.
Find another word for validate. In this page you can discover 42 synonyms, antonyms, idiomatic expressions, and related words for validate, like: confirm, ratify, sanction, endorse, legalize, certify, notarize, authorize, authenticate, substantiate and verify.