FIDI, an abbreviation for "financial district," is a widely recognized term, but there are a variety of synonyms that can also be used to refer to the same location. Wall Street is often used to refer to the heart of the financial district, while the term "downtown" can also be used more generally to describe the area. Other synonyms include the "business district," "banking district," or simply "financial center." These terms all refer to the urban area that houses the major financial institutions, such as banks, stock exchanges, and investment firms. Regardless of the specific term used, the FIDI is a crucial hub for finance and commerce both domestically and internationally.