Tokyo Metropolitan Assembly member; metropolitan assembly member
A political noun used especially in news reporting. In practice, 都 usually points to 東京都, so 都議 means a member of the Tokyo Metropolitan Assembly; the full form is 都議会議員.
He is a Tokyo Metropolitan Assembly member elected from Shinjuku Ward.
The metropolitan assembly member supported the new ordinance bill.
She was elected as a Tokyo Metropolitan Assembly member in last month's election.
He has served as a Tokyo Metropolitan Assembly member for over ten years.
都議 is a member of the Tokyo Metropolitan Assembly, whereas 県議 is a member of a prefectural assembly in one of Japan's other prefectures.
都議 sits in the Tokyo Metropolitan Assembly, while 市議 sits in a city council, a lower administrative level.
都議会 is the Tokyo Metropolitan Assembly itself, while 都議 refers to an individual member elected to that assembly.
Tokyo Metropolitan Assembly
A compact compound from 都, referring here to 東京都 or the metropolitan government, and 議, associated with assembly membership as in 議員. It is effectively a shortened form of 都議会議員.