1. (英国、爱尔兰的)郡;(美国的)县
A county is a region of Britain, Ireland, or the USA which has its own local government.

1. (United Kingdom) a region created by territorial division for the purpose of local government

e.g. the county has a population of 12,345 people

2. (United States) the largest administrative district within a state

e.g. the county plans to build a new road