Greater Buenos Aires, the city of Buenos Aires and its surrounding conurbation, with 12 million inhabitants
Buenos Aires Province, one of Argentina's 23 constituent provinces, which does include most of Greater Buenos Aires but does not include the federal capital
State of Buenos Aires, a historical period when the province of Buenos Aires acted as a nominally independent state from the Argentine Confederation
Autódromo Oscar Alfredo Gálvez, a racing circuit near Buenos Aires, commonly known as "Buenos Aires" by motor racing fans
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