Definition of "deface"
verb:
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To damage something, especially a surface, in a visible or conspicuous manner.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
To void or devalue; to nullify or degrade the face value.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
To alter a coat of arms or a flag by adding an element to it.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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