Blueberries are a type of berry that are small, round fruits typically blue or purple in color. They grow on bushes like little bunches of grapes, that has a mild sweetness with a bit of tartness. They are also a popular ingredient in many different foods, including pies, muffins, and pancakes.

Examples:

1. We picked a bucketful of blueberries from the bushes behind our house.
2. I love blueberry muffins.
3. The little girl carefully placed a single blueberry on top of her cupcake.