juice vs papaya juice

juice and papaya juice both are nouns.

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

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

juice: the liquid part that can be extracted from plant or animal tissue by squeezing or cooking
papaya juice: juice from papayas

Other hyponyms of juice include gravy, pan gravy, lemon juice, lime juice, tomato juice, carrot juice, V-8 juice.

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