ghetto (Noun) — Formerly the restricted quarter of many European cities in which Jews were required to live. ex. "the Warsaw ghetto"
ghetto (Noun) — Any segregated mode of living or working that results from bias or stereotyping. ex. "the relative security of the gay ghetto" ex. "no escape from the ghetto of the typing pool"
ghetto (Noun) — A poor densely populated city district occupied by a minority ethnic group linked together by economic hardship and social restrictions.