What is a cemetery, especially a large one belonging to an ancient city called?

A necropolis is a large, designed cemetery with elaborate tomb monuments. The name stems from the Ancient Greek νεκρόπολις nekropolis, literally meaning "city of the dead".

The term usually implies a separate burial site at a distance from a city, as opposed to tombs within cities, which were common in various places and periods of history. They are different from grave fields, which did not have structures or markers above the ground. While the word is most commonly used for ancient sites, the name was revived in the early 19th century and applied to planned city cemeteries, such as the Glasgow Necropolis.