longan vs lungen

longan and lungen both are nouns.

Word	Noun	Adjective	Verb	Adverb
longan	Yes	No	No	No
lungen	Yes	No	No	No

As nouns, longan and lungen are synonyms defined as:

longan and lungen: tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts; sometimes placed in genera Euphorbia or Nephelium

Other synonyms of longan include Dimocarpus longan, Euphorbia litchi, longanberry, Nephelium longana.

longan (noun)	lungen (noun)
tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts; sometimes placed in genera Euphorbia or Nephelium	tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts; sometimes placed in genera Euphorbia or Nephelium