Voltage

The voltage of an electrical current is its force measured in volts.

Voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points, which (in a static electric field) is defined as the work needed per unit of charge to move a test charge between the two points. In the International System of Units, the derived unit for voltage (potential difference) is named volt.

Sources:

COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers

International Bureau of Weights and Measures (2019-05-20), SI Brochure: The International System of Units (SI) (9th ed.),F-92312 Sèvres Cedex/France ISBN 978-92-822-2272-0