| A | B |
|---|
| annexation | legally adding land area to a city in the US |
| central city | an urban settlement that has been legally incorporated into an independent, self governing unit |
| edge city | a node of office and retail activities on the edge of an urban area |
| gentrification | a process of converting an urban neighborhood from a predominantly low income, renter-occupied area to a predominantly middle class, owner-occupied area |
| informal settlement | an area within a city in a less developed country in which people illegally established residences on land they do not own or rent and erect homemade structures |
| megaloplis | a continuous urban complex in the northeastern US |
| sprawl | development of new housing sites at relatively low density and at locations that are not contiguous to the existing built-up area |
| urban area | a dense core of census tracts, densely settled suburbs, and low density land that links the dense suburbs with the core |
| urbanized area | In the US, an urban area with at least 50,000 inhabitants |
| suburb | a residential or commercial area situated within an urban area but outside the central city |
