What is the meaning of Sell short?

Selling short is a trading strategy that takes advantage of an anticipated drop in a stock's price. To' Sell short', you borrow shares from your broker, sell them, and keep the proceeds until the stock price drops. If it does, you then buy back the shares at a lower price, return the borrowed shares to your broker (plus interest and commission), and pocket the difference. Suppose, for example, you sell short 100 shares of stock priced at $10 a share. When the price drops, you buy 100 shares at $7. 50 a share, give them back to your broker, and keep the $2. 50-per-share profit (minus commission). Of course, if the share price rises instead of falls, you may have to buy back the shares at a higher price and suffer the loss.