1
special ward;administrative subdivision of a prefecture that has a directly elected mayor and assembly
2
special economic zone (in China)
See also:
特別経済区 (とくべつけいざいく)
3
special administrative region of China (e.g. Hong Kong)
See also:
特別行政区 (とくべつぎょうせいく)
4
special district (of a nation with a federal structure)
See also:
コロンビア特別区 (コロンビアとくべつく)