A city was a large permanent settlement of sentient beings.
A city can range in size from overgrown towns like Washington to huge metropolises, such as Bay City. On some worlds thousands of cities would grow into a Ecumenopolis. The most famous of these ecumenopolises was Republic City on the planet Ecuis. A city that was the center of a government was known as a capital city. Large cities often had extensive infrastructures to support the population. Bay city's infrastructure was massive and included hundreds of subways and an underground pedestrian level.. The largest city proper in the galaxy was Bay city, while Republic city was the largest metropolitan area