carrot juice vs juice

carrot juice and juice both are nouns.

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

As nouns, juice is a hypernym of carrot juice; that is, juice is a word with a broader meaning than carrot juice:

carrot juice: usually freshly squeezed juice of carrots
juice: the liquid part that can be extracted from plant or animal tissue by squeezing or cooking

carrot juice (noun)	juice (noun)
usually freshly squeezed juice of carrots	any of several liquids of the body
	the liquid part that can be extracted from plant or animal tissue by squeezing or cooking
	electric current
	energetic vitality