To write something in one's own handwriting
To sign, or write one’s name or signature on a book etc
A person's signature used as a mark of formal approval.
A person’s own handwriting, especially the signature of a famous or admired person.
A manuscript in the author’s handwriting.
Made by the artist himself or herself; authentic.
Written in the author’s own handwriting.
To write or cut (words) onto (something, especially a hard surface, or a book to be given to another person); to engrave.
To draw a circle, sphere, etc. inside a polygon, polyhedron, etc. and tangent to all its sides.