Synonyms of the word

authenticate

• v. To render authentic; to give authority to, by the proof, attestation, or formalities required by law,…
• v. To prove authentic; to determine as real and true.
• adj. Synonym of authentic.

attest

• v. To affirm to be correct, true, or genuine.
• v. To certify by signature or oath.
• v. To certify in an official capacity.
• v. To supply or be evidence of.
• v. To put under oath.
• v. To call to witness; to invoke.

certify

• v. (transitive) to attest to as the truth or meeting a standard.

demonstrate

• v. To display the method of using an object.
• v. To show the steps taken to create a logical argument or equation.
• v. To participate in or organize a demonstration.
• v. To show, display, present.

evidence

• n. Facts or observations presented in support of an assertion.
• n. (law) Anything admitted by a court to prove or disprove alleged matters of fact in a trial.
• n. One who bears witness.
• v. (transitive) To provide evidence for, or suggest the truth of.

manifest

• adj. Evident to the senses, especially to the sight; apparent; distinctly perceived.
• adj. Obvious to the understanding; apparent to the mind; easily apprehensible; plain; not obscure or hidden.
• adj. (rare, used with "of") Detected; convicted.
• n. (obsolete) A public declaration; an open statement; a manifesto or manifestation.
• n. A list or invoice of the passengers or goods being carried by a commercial vehicle or ship.
• n. (computing) A file containing metadata describing other files.
• v. To show plainly; to make to appear distinctly, usually to the mind; to put beyond question or doubt; to…
• v. To exhibit the manifests or prepared invoices of; to declare at the customhouse.