"City" Natural Recordings by Native Speakers
A city is a large and permanent human settlement. It is typically characterized by a high population density and a defined boundary that separates it from surrounding areas. Cities are usually centers of commerce, industry, education, healthcare, and government, and they often have a wide range of infrastructure such as transportation systems, power and water supply lines, and communication networks.
A city-state is a political entity that is both a city and a sovereign state, typically with a very small population and a defined territory. City-states often have their own governments, laws, and institutions, but may also be part of a larger country or confederation.