noun
The legislative body of the Tokyo Metropolis. Often used in news and political contexts.
都議会で新しい条例が可決された。
A new ordinance was passed in the Tokyo Metropolitan Assembly.
区議会 is a ward assembly within Tokyo, a lower-level body compared to the metropolitan-wide 都議会.
Compound of 都 (to, 'metropolis', referring to Tokyo) and 議会 (gikai, 'assembly, parliament').