The prefix "audio-" is commonly used to describe sound or hearing-related activities. Some synonyms to this prefix include "acoustic," "sonic," "aural," "sound," and "hearing." "Acoustic" pertains to sound that is transmitted through the air or other media. "Sonic" refers to sound waves that travel through a medium such as air or water. "Aural" pertains to the sense of hearing, while "sound" simply refers to audible waves of energy. "Hearing" pertains to the ability to sense sound, and is commonly associated with the ears. Using synonyms for "audio-" can add depth and variety to language and communication.