The word "acoustic" relates to sound, especially the properties and effects of sound in environments. It can describe how sound is produced, transmitted, and perceived, focusing on the qualities of sound waves. Acoustic can refer to musical instruments that produce sound naturally, without electronic amplification, or to studies and technologies related to sound.
The term "acoustic" comes from the Greek word "akoustikos," meaning "of hearing" or "audible," which is derived from "akouein," meaning "to hear."