defacement
Pronunciation:
/dɪˈfeɪsmənt/noun
Definitions
An act of defacing; an instance of visibly marring or disfiguring something.
Example: Some consider the defacement of the Sphinx to be the most egregious crime of Napolean's campaigns.
An act of voiding or devaluing; nullification of the face value.
Example: The soldiers found a variety of creative uses for their payment scrip after its defacement to scrap paper; some used it as toilet paper.
(vexillology) A symbol added to a flag or coat of arms to change it or make it different from another.