potential difference vs potential drop

potential difference and potential drop both are nouns.

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

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

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

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

potential difference (noun)	potential drop (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