a wide street in London stretching from Trafalgar Square to the Houses of Parliament; site of many government offices
the British civil service
the British Government
The colloquial name for the UK government generally, and the civil service bureaucracy in particular.
Whitehall is a road in Westminster in London, England. It is the main artery running north from Parliament Square, centre of national government, towards traditional Charing Cross, now at the southern end of Trafalgar Square and marked by the statue of Charles I, which is often regarded as the heart of London. The road is lined with government ministries; "Whitehall" is therefore also frequently used as a metonym for governmental administration, as well as being a geographic name for the surrounding district.
The name "Whitehall" in the context of Manhattan originally referred to Peter Stuyvesant's grand residence at the southern tip of Manhattan Island, a name given to it by the British when they took over New Amsterdam from the Dutch.