The intensity of a sound.

A single unit of external storage, all of which can be read or written by a single access mechanism or input/output device.

The magnitude of a complex audio-frequency current as measured in volume units on a standard volume indicator.

A measure of the size of a body or definite region in three-dimensional space; it is equal to the least upper bound of the sum of the volumes of nonoverlapping cubes that can be fitted inside the body or region, where the volume of a cube is the cube of the length of one of its sides. Abbreviated vol.