Market district: A city or town located in a state or territory with a population greater than 300,000 and which is the main trading centre for the major stock markets.
The market district is not necessarily geographically central but typically has the largest number of trading centres, including New York, London, Hong Kong and Tokyo.
Produce market: A region of urban areas, such as Sydney, Melbourne or Adelaide, that is one of the major markets for agricultural produce.
Stock market: An economic index compiled by the Bureau of Statistics to show the market value of a specified type of stock.
Source: Business Insider