longanberry vs dragon's eye

longanberry and dragon's eye both are nouns.

Word	Noun	Adjective	Verb	Adverb
longanberry	Yes	No	No	No
dragon's eye	Yes	No	No	No

As nouns, longanberry and dragon's eye are synonyms defined as:

longanberry (noun)	dragon's eye (noun)
Asian fruit similar to litchi	Asian fruit similar to litchi
tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts; sometimes placed in genera Euphorbia or Nephelium