To certify by signature or oath:
To bestow; to confer.
The definition of evidence is to show proof.
To show (oneself) to be capable, dependable, etc.
A person who gives testimony under oath and penalty of perjury in a court of law
(Law) To administer a legal oath to:
To substantiate by supplying evidence; prove:
To prove to be true by demonstration, evidence, or testimony; confirm or substantiate
To declare one's belief in
(Rare) To outlaw, ban, or otherwise restrict by a proclamation
To suggest or demonstrate the necessity, expedience, or advisability of:
To testify (to)
To state or express positively; affirm:
To say positively; declare firmly; assert to be true
To deserve or call for; require:
To show or indicate by a mark or marks
To show beforehand; presage
To be indicative of; show
To validate is to confirm, legalize, or prove the accuracy of something.
To substantiate is to prove a claim to be true or back up a claim with evidence.
The definition of justify is to provide an explanation or rationale for something to make it seem OK or to prove it is correct or OK.
To support or establish the certainty or validity of; verify:
Back is defined as to support or to move in a backward motion.
To back a cause, party etc. mentally or with concrete aid.
Find another word for testifies. In this page you can discover 32 synonyms, antonyms, idiomatic expressions, and related words for testifies, like: attests, shows, evidences, proves, deposes, depones, witnesses, swears, vouches, verifies and professes.