A more thorough explanation:

Definition: A stockbroker is a person who buys or sells stocks on behalf of someone else. They are also known as account executives or account representatives.

Example: John wants to invest in the stock market but doesn't have the knowledge or time to do it himself. He hires a stockbroker to buy and sell stocks for him. The stockbroker charges a fee for their services.

Explanation: The example illustrates how a stockbroker acts as an agent for someone who wants to invest in the stock market but doesn't have the expertise or time to do it themselves. The stockbroker buys and sells stocks on behalf of their client and charges a fee for their services.