Of or relating to a person's life or an account of a person's life, as told by the subject.

(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.

One who writes his or her own life or biography.

Having autism, or pertaining to autism. / (now derogatory, offensive, slang, and medically obsolete) Socially inept, self-absorbed, or stupid.

A person who has autism.

In an authentic manner; with the requisite or genuine authority.

(transitive) To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.

Synonym of authentic.

The quality or state of being an author; the function or dignity of an author. / The source; origin; origination