- to make less sensitive, active, energetic, or forcible; weaken: to deaden sound; to deaden the senses; to deaden the force of a blow.
- to lessen the velocity of; retard: to deaden the headway of a ship.
- to make impervious to sound, as a floor.
- to become dead.
- to make or become less sensitive, intense, lively, etc; damp or be damped down; dull
- to make acoustically less resonant
