Pronunciation: (di-fās'), [key]
—v.t., -faced, -fac•ing.
1. to mar the surface or appearance of; disfigure: to deface a wall by writing on it.
2. to efface, obliterate, or injure the surface of, as to make illegible or invalid: to deface a bond.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.