something which validates or confirms the authenticity of something / (computing) proof of the identity of a user logging on to some network / a hallmark or assay-mark on a piece of metalwork

A form of government in which the governing body has absolute, or almost absolute, control. Typically this control is maintained by force, and little heed is paid to public opinion or the judicial system.

The quality of being genuine or not corrupted from the original, of having the same origin (or attribution, commitment, intention, etc.) as claimed.

Explicitly allowed.

simple past tense and past participle of authorize

(Britain) A translation of the Bible from the original Hebrew (Old Testament) and Greek (New Testament) commissioned for the Church of England.

(transitive) To grant (someone) the permission or power necessary to do (something). / (transitive) To permit (something), to sanction or consent to (something).

(uncountable) Permission. / (countable) An act of authorizing. / (countable) (A document giving) formal sanction, permission or warrant.

(computing) An organization that issues digital certificates for use by other parties.

The quality of being authentic; authenticity.