bilberry vs blueberry

bilberry and blueberry both are nouns.

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

As nouns, blueberry is a hypernym of bilberry; that is, blueberry is a word with a broader meaning than bilberry:

bilberry: erect blueberry of western United States having solitary flowers and somewhat sour berries
blueberry: any of numerous shrubs of the genus Vaccinium bearing blueberries

Other hypernyms of bilberry include blueberry bush.

As nouns, blueberry is a hypernym of bilberry; that is, blueberry is a word with a broader meaning than bilberry:

bilberry: erect European blueberry having solitary flowers and blue-black berries
blueberry: any of numerous shrubs of the genus Vaccinium bearing blueberries

Other hypernyms of bilberry include blueberry bush.

bilberry (noun)	blueberry (noun)
blue-black berries similar to American blueberries	sweet edible dark-blue berries of either low-growing or high-growing blueberry plants
erect blueberry of western United States having solitary flowers and somewhat sour berries	any of numerous shrubs of the genus Vaccinium bearing blueberries
erect European blueberry having solitary flowers and blue-black berries