What term describes very run down areas where people live in poor conditions, also known as ghettos?

The term that describes very run-down areas where people live in poor conditions is "slums." Slums are characterized by inadequate housing, overcrowding, and a lack of basic services such as clean water and sanitation. They often arise in urban areas where there’s a high population density, and they can be the result of economic factors, social issues, and urbanization.

These areas are typically associated with poverty and can be found in various cities around the world. Slums illustrate complex issues related to housing, inequality, and social justice as they often host marginalized communities who face various challenges in their daily lives. In contrast to slums, warehousing districts usually refer to areas designated for storing goods, suburbs are residential areas situated on the outskirts of cities, and exurbs describe regions that lie beyond the suburbs, often characterized by more rural development.