What Does Volt (V) Mean?

A volt (V) is a unit of electrical potential or energy capacity. It is equal to the transmission of one joule (or unit of energy) per coulomb (or charge point). Voltage provides critical measurements for residential and commercial electrical systems in terms of the potential energy transmission of current.

Techopedia Explains Volt (V)

In the common type of alternating current found in residential and commercial systems, voltage tends to change continually. Engineers may use a measurement called the “root mean square” to show the average or standard voltage.