Source : Webster's Revised Unabridged Dictionary (1913)

Ghetto \Ghet"to\, n.
   A quarter of a city where Jews live in greatest numbers.

Ghetto \Ghet"to\, n. [It.]
   The Jews'quarter in an Italian town or city.

         I went to the Ghetto, where the Jews dwell. --Evelyn.

Source : WordNet®

ghetto
     n 1: formerly the restricted quarter of many European cities in
          which Jews were required to live; "the Warsaw ghetto"
     2: any segregated mode of living or working that results from
        bias or stereotyping; "the relative security of the gay
        ghetto"; "no escape from the ghetto of the typing pool"
     3: a poor densely populated city district occupied by a
        minority ethnic group linked together by economic hardship
        and social restrictions
     [also: {ghettoes} (pl)]