current vs juice

current and juice both are nouns.

Word	Noun	Adjective	Verb	Adverb
current	Yes	Yes	No	No
juice	Yes	No	No	No

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

Other hyponyms of current include thermionic current.

current (noun)	juice (noun)
a steady flow of a fluid (usually from natural causes)	any of several liquids of the body
dominant course (suggestive of running water) of successive events or ideas	the liquid part that can be extracted from plant or animal tissue by squeezing or cooking
a flow of electricity through a conductor	electric current
	energetic vitality

current (adjective)	juice (adjective)
occurring in or belonging to the present time