potential unit vs V

potential unit and V both are nouns.

Word	Noun	Adjective	Verb	Adverb
potential unit	Yes	No	No	No
V	Yes	No	No	No

As nouns, V is a hyponym of potential unit; that is, V is a word with a more specific, narrower meaning than potential unit:

potential unit: a measure of the potential energy of a unit charge at a given point in a circuit relative to a reference point (ground)
V: a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it

Other hyponyms of potential unit include abvolt, millivolt, mV, microvolt, nanovolt, picovolt, femtovolt, volt, kilovolt, kV.

potential unit (noun)	V (noun)
a measure of the potential energy of a unit charge at a given point in a circuit relative to a reference point (ground)	the 22nd letter of the Roman alphabet
	a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it
	the cardinal number that is the sum of four and one
	a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite