rose-apple tree vs Eugenia jambos

rose-apple tree and Eugenia jambos both are nouns.

Word	Noun	Adjective	Verb	Adverb
rose-apple tree	Yes	No	No	No
Eugenia jambos	Yes	No	No	No

As nouns, rose-apple tree and Eugenia jambos are synonyms defined as:

rose-apple tree and Eugenia jambos: tropical tree of the East Indies cultivated for its edible fruit

Other synonyms of rose-apple tree include jambosa, rose apple.

rose-apple tree (noun)	Eugenia jambos (noun)
tropical tree of the East Indies cultivated for its edible fruit	tropical tree of the East Indies cultivated for its edible fruit