What is another name for potential difference?

1)Potential is the amount of effort required to bring a point charge from infinity to any given point.
2)Potentials can vary between two items. The potential difference refers to this variation in potentials.
3)Another name for the potential difference is Voltage.
4)It is denoted by V.
5)Its SI unit is Volts.
6)One example of voltage or potential difference is common household batteries. Their voltage is 9 volts.