noun A town having a municipal corporation and certain traditional rights.
noun An administrative district in some cities, e.g., London.
noun An administrative unit of a city which, under most circumstances according to state or national law, would be considered a larger or more powerful entity.
noun Other similar administrative units in cities and states in various parts of the world.
noun A district in Alaska having powers similar to a county.
noun An association of men who gave pledges or sureties to the king for the good behavior of each other.