Region, area (8)
I believe the answer is:
district
I believe this is a double definition.
'region' is the first definition.
(I know that district is a type of region)
'area' is the second definition.
(I've seen this before)
(Other definitions for district that I've seen before include "Territory, zone" , "Area (of a town/city)" , "London Underground line represented in green" , "Area of town or country" , "Area, region" .)