The 'A' of D.J.I.A. stands for AVERAGE, which is a seven-letter word. The Dow Jones Industrial AVERAGE (DJIA) is a stock market index that tracks the performance of 30 large companies listed on the New York Stock Exchange and the NASDAQ. The DJIA is a price-weighted AVERAGE, meaning that the stocks with higher prices have a greater impact on the index. The AVERAGE is calculated by taking the sum of the prices of all 30 stocks and dividing it by the number of stocks in the index. This gives investors an idea of how the stock market is performing overall.