cubeb vs Java pepper

cubeb and Java pepper both are nouns.

Word	Noun	Adjective	Verb	Adverb
cubeb	Yes	No	No	No
Java pepper	Yes	No	No	No

As nouns, cubeb and Java pepper are synonyms defined as:

cubeb and Java pepper: tropical southeast Asian shrubby vine bearing spicy berrylike fruits

Other synonyms of cubeb include cubeb vine, Piper cubeba.

cubeb (noun)	Java pepper (noun)
a cigarette containing cubeb	tropical southeast Asian shrubby vine bearing spicy berrylike fruits
tropical southeast Asian shrubby vine bearing spicy berrylike fruits
spicy fruit of the cubeb vine; when dried and crushed is used medicinally or in perfumery and sometimes smoked in cigarettes