Listed from smallest to largest, they are city > county > state > country
Singapore is a sovereign city-state country. A city-state is a country that consists of a single city.
Tokyo is state city. It is the capital city of Japan.
In the city of Athens (still the capital city)
It is an independent country - a city/state - the smallest country in the world.
A city is Springfield, the state is Illinois, the country is the United States of America.
Carson City is in the state of Nevada in the country of the United States.
It is the name of a country, a state and a city.
It is a city state
Singapore is a sovereign city-state country. A city-state is a country that consists of a single city.
A city-state is a city that is also a country, like Singapore or Vatican City.
Singapore's capital city is Singapore (the entire country is the city-state itself).The city of Singapore is the capital of the Republic of Singapore.