ˈdefən transitive verb
( deafened ; deafened ; deafening -f(ə)niŋ ; deafens )
1. : to make deaf : deprive especially temporarily of the power of hearing : daze with noise
deafened by the roar of escaping steam
2. obsolete : to make inaudible : drown out (a sound)
3. : to make (a wall, floor, ceiling) impervious to sound (as by filling or lining with sound-absorbent material)