A bread roll is a small, often round loaf of bread served as a meal accompaniment (eaten plain or with butter). A roll can be served and eaten whole or cut transversely and dressed with filling between the two halves. Rolls are also commonly used to make sandwiches similar to those produced using slices of bread.
There are many names for bread rolls, especially in local dialects of British English. The different terms originated from bakers, who labelled different bread rolls depending on how they made the dough and how they were cooked. Over time, most people have come to use one name to refer to all similar products regardless of whether or not it is technically correct by the old terms.