1. Voice production when air from the lungs passes over the stretched vocal cords: The resultant voces, or vibrations, are modified by the tongue, palate (roof of the mouth), and the lips to produce speech, singing, etc.

The vox is also called the "voice box" and it is located deep in the throat between the pharynx (passage that connects the back of the mouth and the nose) and the trachea (windpipe).

2. Etymology: from Latin; literally, "voice".