Pronunciation: (def'un), [key]
1. to make deaf: The accident deafened him for life.
2. to stun or overwhelm with noise: The pounding of the machines deafened us.
3. deaden (def. 3).
4. Obs.to render (a sound) inaudible, esp. by a louder sound.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.