noun
ward council
Refers to the legislative body of a special ward (特別区) in Tokyo, or sometimes of other designated wards. The term is specific to Japanese local government.
区議会議員は住民の代表として活動する。
Ward council members work as representatives of the residents.
来月、区議会の定例会が開かれる。
The regular ward council meeting will be held next month.
都議会 is the Tokyo Metropolitan Assembly, a higher-level body than a ward council.
Compound of 区 (ward) and 議会 (council, assembly). The word follows standard Sino-Japanese word formation.