| 1. | to make less sensitive, active, energetic, or forcible; weaken: to deaden sound; to deaden the senses; to deaden the force of a blow. |
| 2. | to lessen the velocity of; retard: to deaden the headway of a ship. |
| 3. | to make impervious to sound, as a floor. |
| 4. | to become dead. |