1An area of Beijing containing the former imperial palaces, to which entry was forbidden to all except the members of the imperial family and their servants.
（北京的）紫禁城
2A name given to Lhasa in Tibet.
禁城（拉萨）
Definition of Forbidden City in US English:
Forbidden City
proper noun
1An area of Beijing, China, that contains the former imperial palaces, to which entry was forbidden to all except the members of the imperial family and their servants.