The term Bilberry is a type of berry that is related to both the Whortleberry and the Blueberry. The Whortleberry is a 12 letter word, while the Blueberry is a 9 letter word. Bilberries are native to Europe and North America and have been used for centuries as a medicinal plant. They are also used in jams, jellies, and pies. Bilberries are known for their antioxidant properties and are often used to treat eye problems.