A ghetto refers to a part of a city where a specific group of people, often defined by ethnicity, religion, or socioeconomic status, is concentrated and may face social, economic, or legal restrictions. Historically, ghettos emerged as marginalized communities were segregated from the broader society, often leading to limited access to resources and opportunities. This term is commonly associated with Jewish neighborhoods in Europe during the Holocaust but has evolved to describe various urban areas where similar patterns of exclusion occur.