front 1 megalopolis | back 1 a region in which several large cities and surrounding areas grow together. |
front 2 the Midwest | back 2 the region that contains the 12 states of the north-central United States |
front 3 the South | back 3 a region that covers about one-fourth of the land area of the United States and contains more than one-third of its population. |
front 4 metropolitan area | back 4 a functional area including a city and its surrounding suburbs and exurbs, linded economically. |
front 5 the West | back 5 North American region, consisting of 13 states, that stretches from the Great Plains to the Pacific Ocean and includes Alaska to the north and Hawaii in the Pacific |