region
noun
ˈriːdʒən 
ˈriːdʒən 
1 [countable] a large area of land, usually without exact limits or bordersthe Arctic/tropical/desert, etc. regionsone of the most densely populated regions of North America2 [countable] one of the areas that a country is divided into, that has its own customs and/or its own governmentthe Basque region of Spain3 the regions [plural] (British English) all of a country except the capital cityPeople in the regions should not have to travel to London to fly to the United States.4 [countable] a part of the body, usually one that has a particular character or problempains in the abdominal regionIdioms
in the region of
used when you are giving a number, price, etc. to show that it is not exact
Synonym
approximatelyHe earns somewhere in the region of €50000.