II. Examples of metonyms

word original meaning metonymic use
General
damages destructive effects money paid in compensation
word

 

a unit of language

 

a promise (to give/keep/break one's word); a conversation (to have a word with)
sweat perspiration hard work
tongue oral muscle a language or dialect
aggregation, assembly coming together result of coming together; those who come together
city hall a city's chief administrative building city government or government in general (Common usage in axiom, "You can't fight city hall.")
dish an item of crockery a course (in dining)
jigsaw cutting tool jigsaw puzzle
militia military or defense activity those engaged in or subject to being required to engage in defense activity
service doing for others those who serve (especially military)
American
Washington capital of the United States the United States federal government
The White House Official residence of the President of the United States the President and staff
Wall Street a street in Lower Manhattan, New York City the United States financial and banking industry
Broadway an avenue running the length of Manhattan Island in New York City Broadway theatre in particular, and American theatre in general
The Pentagon the office building in Arlington, Virginia that serves as the headquarters of the US Defense Department the US Defense Department, the US Secretary of Defense and high-ranking military officials based there
Capitol Hill The neighborhood in which the United States Capitol is located the United States Congress
Madison Avenue a street in New York City the United States advertising industry
Seventh Avenue a street in New York City the United States fashion industry
Cupertino a city in the state of California Apple Inc., which is headquartered there
Detroit largest city in the state of Michigan the United States automobile industry, which is centered in the Detroit area
Houston largest city in the state of Texas NASA Mission Control, from the phrase "Houston, we've had a problem"
Cape Canaveral a geographic feature in the state of Florida near the… NASA Kennedy Space Center and Cape Canaveral Air Force Station
the people human beings, or a specific group thereof some state governments in criminal prosecution matters, e.g., "People (of the State of Michigan) versus X", as opposed to "State (of Ohio) versus Y"
British
England a country within the United Kingdom the United Kingdom as a whole
The Crown a monarch's headwear the British monarchy
The Palace Buckingham Palace The monarch's office
New Scotland Yard a London building, the headquarters of the Metropolitan Police Metropolitan Police
The City the City of London the British financial markets, historically centred in The City
Westminster the City of Westminster in London The Parliament of the United Kingdom , or the UK Government, which is located there
Thames House Headquarters of… the British Security Services
Whitehall a street in the City of Westminster, the headquarters of the British Civil Service and various Governmental Departments the offices of the British government's senior bureaucrats; the British Civil service or a Government Department
Fleet Street a street in London the British press, particularly newspapers, or the British newspaper industry
Downing Street or "Number 10" Official residence of the Prime Minister[1] the British Prime Minister and his or her staff
Vauxhall Cross Headquarters of… the Secret Intelligence Service (aka MI6)
Canadian
the Crown The monarch Usually used in court as the federal or provincial government as in "The crown Versus …"
Ottawa the capital of Canada the Canadian federal government
European  
Brussels the capital city of Belgium, also home to most of the… Institutions of the European Union
the Kremlin A fortified complex in Moscow Formerly the Soviet government; used today to a lesser extent for the Russian government
Gulag chief administration of the Soviet forced labour camps the prison camps it administered
any country's capital city the country's capital that country's government in general, and often, as the whole country itself
Toompea A limestone hill in Tallinn, Estonia The Government and Parliament of Estonia
         

1. Technically, 10 Downing Street is the official residence of the First Lord of the Treasury, not the Prime Minister. However, the two offices have been held by the same person since the early 20th century.