What does the term "megalopolis" mean in Greek?

The term "megalopolis" originates from the Greek words "megas," meaning "great," and "polis," meaning "city." Thus, when combined, it translates to "great city." This term is often used to describe a large, densely populated urban area that encompasses multiple cities or a continuous network of cities. In this context, the choice that refers to "great city" accurately reflects the etymology and intended meaning of the word. It captures the sense of significance and size that the term "megalopolis" embodies in discussions about urban development and geographic studies. The other choices do not align with this specific translation or the historical context associated with the term.