bilberry vs bilberry

bilberry and bilberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
bilberry	Yes	No	No	No
bilberry	Yes	No	No	No

bilberry (noun)	bilberry (noun)
blue-black berries similar to American blueberries	blue-black berries similar to American blueberries
erect blueberry of western United States having solitary flowers and somewhat sour berries	erect blueberry of western United States having solitary flowers and somewhat sour berries
erect European blueberry having solitary flowers and blue-black berries	erect European blueberry having solitary flowers and blue-black berries