What is the meaning of Autograph?

A person’s own handwriting, especially the signature of a famous or admired person.

A person's signature used as a mark of formal approval.

A manuscript in the author’s handwriting.

Written in the author’s own handwriting.

Made by the artist himself or herself; authentic.

To sign, or write one’s name or signature on a book etc

To write something in one's own handwriting

Source: wiktionary.org