The term 'round bread roll' can be summarized as a BUN, which is a three-letter word. Buns are small, round, and often sweetened bread rolls that are commonly served as a side dish or snack. They are usually made with flour, sugar, butter, eggs, and milk, and can be topped with various ingredients such as sesame seeds, poppy seeds, or nuts. Buns are often served with butter, jam, or honey, and can also be used as a sandwich base.