lemony vs lemon

lemony is not a noun while lemon is a noun.

Word	Noun	Adjective	Verb	Adverb
lemony	No	Yes	No	No
lemon	Yes	No	No	No

lemony (noun)	lemon (noun)
	an artifact (especially an automobile) that is defective or unsatisfactory
	a strong yellow color
	a distinctive tart flavor characteristic of lemons
	yellow oval fruit with juicy acidic flesh
	a small evergreen tree that originated in Asia but is widely cultivated for its fruit

lemony (adjective)	lemon (adjective)
tasting sour like a lemon