pertaining to the sense or organs of hearing, to sound, or to the science of sound.

(of a building material) designed for controlling sound.

Music .

of, pertaining to, or being a musical instrument whose sound is not electrically enhanced or modified.

arranged for or made up of such instruments

an acoustic solo; an acoustic group.

Obsolete . a remedy for deafness or imperfect hearing.

adjective

audile , audio , auditory , aural , hearing , phonic