A symbol added to a flag or coat of arms to change it or make it different from another.
An act of defacing; an instance of visibly marring or disfiguring something.
An act of voiding or devaluing; nullification of the face value.
Informal inscriptions, figure drawings, etc., as opposed to official inscriptions.
Drawings or words drawn on a surface in a public place, usually made without authorization.
To mark a surface with such images.