voltage vs potential difference

voltage and potential difference both are nouns.

Word	Noun	Adjective	Verb	Adverb
voltage	Yes	No	No	No
potential difference	Yes	No	No	No

As nouns, voltage and potential difference are synonyms defined as:

voltage and potential difference: the difference in electrical charge between two points in a circuit expressed in volts

Other synonyms of voltage include electric potential, potential, potential drop.

voltage (noun)	potential difference (noun)
the difference in electrical charge between two points in a circuit expressed in volts	the difference in electrical charge between two points in a circuit expressed in volts
the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts