[n] (anatomy) any encircling or beltlike structure
[n] an area or region distinguished from adjacent parts by a distinctive feature or characteristic
[n] any of the regions of the surface of the Earth loosely divided according to latitude or longitude
[n] a circumscribed geographical region characterized by some distinctive features
[v] separate or apportion into sections; "partition a room off"
[v] regulate housing in; of certain areas of towns