A more thorough explanation:

A listed security exchange is a type of secondary market where securities, such as stocks and bonds, are bought and sold. It is an organized market that operates at a designated location, such as the New York Stock Exchange (NYSE).

For example, if you want to buy shares of Apple Inc., you can do so through the NYSE. The NYSE is a listed security exchange where Apple's shares are traded. Similarly, if you want to sell your shares of Microsoft Corporation, you can do so through the NASDAQ, which is another listed security exchange.

These examples illustrate how listed security exchanges provide a platform for investors to buy and sell securities in a regulated and transparent manner. The exchanges ensure that buyers and sellers can find each other easily and that the transactions are executed fairly and efficiently.