1. (

• deafen ,

) be unbearably loud; "a deafening noise" ;

2. (

• deafen ,
• deaf

) make or render deaf; "a deafening noise" ;

3. (

• deafen ,

) make soundproof; "deafen a room" ;

1. (

• deafening ,
• earsplitting ,
• thunderous ,
• thundery

) loud enough to cause (temporary) hearing loss ;