fructose vs levulose

fructose and levulose both are nouns.

Word	Noun	Adjective	Verb	Adverb
fructose	Yes	No	No	No
levulose	Yes	No	No	No

As nouns, fructose and levulose are synonyms defined as:

fructose and levulose: a simple sugar found in honey and in many ripe fruits

Other synonyms of fructose include fruit sugar, laevulose.

fructose (noun)	levulose (noun)
a simple sugar found in honey and in many ripe fruits	a simple sugar found in honey and in many ripe fruits