borough

noun8

1. •
   An administrative district in some cities, e.g., London.
2. •
   (US) 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.
3. •
   Other similar administrative units in cities and states in various parts of the world.
4. •
   A district in Alaska having powers similar to a county.
5. •
   A town having a municipal corporation and certain traditional rights.
6. •
   (rare) A town or city.
7. •
   (UK, historical) An association of men who gave pledges or sureties to the king for the good behavior of each other.
8. •
   (no longer used) A fortified town.