i Register
In some senses, autograph is marked as colloquial. Watch for register when choosing this word.
noun
A person’s own handwriting, especially the signature of a famous or admired person.
Some autograph-hunters were pestering the players after the game.
A person's signature used as a mark of formal approval.
If you could just put your autograph on the ol’ contract, please…
For me, identifying an autograph is one of the most exciting aspects of collecting. I enjoy the detective work that comes with discerning a fake from the real deal, and subsequently valuing the item against other examples.
A manuscript in the author’s handwriting; a handwritten copy.
An autograph of this text, made by E. Weidner, will be reproduced as plate XVII.
adj
Written in the author’s own handwriting.
Made by the artist himself or herself; authentic.
Schiff […] believes most of the drawings are autograph.
Not surprisingly, he attributed to Kauffman two important works that are no longer accepted as autograph.
verb
To sign, or write one’s name or signature on a book, etc.
Diego Maradona is helping in the fight against coronavirus in his home city by autographing a replica of the Argentina jersey he wore in the country’s 1986 World Cup final triumph to raise money for an underprivileged community.
To write something in one's own handwriting.