durian tree vs durion

durian tree and durion both are nouns.

Word	Noun	Adjective	Verb	Adverb
durian tree	Yes	No	No	No
durion	Yes	No	No	No

As nouns, durian tree and durion are synonyms defined as:

durian tree and durion: tree of southeastern Asia having edible oval fruit with a hard spiny rind

Other synonyms of durian tree include durian, Durio zibethinus.

durian tree (noun)	durion (noun)
tree of southeastern Asia having edible oval fruit with a hard spiny rind	tree of southeastern Asia having edible oval fruit with a hard spiny rind