This is the 549th most frequent Japanese word.
都市
City; urban area.
Here, '都市' is used to denote a large and urbanized population center, equivalent to the idea of a city.
東京は日本で最も大きい都市です。
Tokyo is the largest city in Japan.
'都市' is referenced in the context of discussing conceptual or futuristic cities.
未来の都市はより環境に優しい設計になるでしょう。
The cities of the future will be designed to be more environmentally friendly.
The term '都市' is being used generally to describe urban areas around the world.