What is a non-example of city-state?

A non-example of a city-state would be a large country like the United States. Unlike a city-state, which is a sovereign entity consisting of a single city and its surrounding territory, the United States is a federal system made up of 50 states, each with its own government and significant political autonomy. Other non-examples include nations like Canada and India, which are also composed of multiple regions or states rather than being centered around a single city.