defacement

noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about defacement at Wordnik → Where our words come from →

1. An act of defacing; an instance of visibly marring or disfiguring something.

   Some consider the defacement of the Sphinx to be the most egregious crime of Napolean's campaigns.

2. An act of voiding or devaluing; nullification of the face value.

   The soldiers found a variety of creative uses for their payment scrip after its defacement to scrap paper; some used it as toilet paper.

3. A symbol added to a flag or coat of arms to change it or make it different from another.