Metropolis is a popular term used to refer to a large and bustling city. However, there are numerous other synonyms one can use to describe this kind of urban center. Here are some examples: megacity, cosmopolis, megalopolis, hub, urban center, urban core, big city, metro area, urban agglomeration, and cityscape. Each of these synonyms has a slightly different connotation, but they all refer to a city characterized by a high population density, a diverse range of economic and cultural activities, and a fast-paced way of life. So, next time you need to describe a metropolis, try using one of these synonyms instead.