American Capital refers to the financial center of the United States. The term has a lot of synonyms, such as Wall Street, New York Stock Exchange, Financial District, and Money Center. These synonyms all refer to the economic hub of America where the largest financial institutions, corporations, and businesses are located. Wall Street, for instance, is a famous symbol of American Capital and the global financial industry. Financial District and Money Center are also used to describe the area surrounding these financial institutions in America's urban centers. Overall, these synonyms emphasize the economic importance and influence of American Capital in driving the growth and development of the country's financial system.