current unit vs amp

current unit and amp both are nouns.

Word	Noun	Adjective	Verb	Adverb
current unit	Yes	No	No	No
amp	Yes	No	No	No

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

current unit: a measure of the amount of electric charge flowing past a circuit point at a specific time
amp: the basic unit of electric current adopted under the Systeme International d'Unites

Other hyponyms of current unit include A, ampere, mA, milliampere, abamp, abampere, ampere, international ampere.

current unit (noun)	amp (noun)
a measure of the amount of electric charge flowing past a circuit point at a specific time	the basic unit of electric current adopted under the Systeme International d'Unites