deafen

deafen is a   Verb

Definition:

[1] To make deaf; to deprive of the power of hearing; to render incapable of perceiving sounds distinctly. Deafened and stunned with their promiscuous cries. Addison.

[2] To render impervious to sound, as a partition or floor, by filling the space within with mortar, by lining with paper, etc.

Synonyms: