A more thorough explanation:

A dealer is a person or business that buys and sells goods or services. In the legal context, there are two common definitions:

A dealer can be a retailer who buys goods or services from a supplier and then sells them to consumers. For example, a car dealership is a dealer that buys cars from manufacturers and sells them to customers.

In securities law, a dealer is a person who buys and sells securities, such as stocks and bonds, on behalf of others. This can include acting as an agent, broker, or principal in these transactions. For example, a stockbroker is a dealer who helps clients buy and sell stocks.

One example of a legal case involving a dealer is Beck Chevrolet Co. v. General Motors LLC. In this case, a car dealership sued General Motors for breach of contract. The court had to determine whether the dealership was a dealer in the legal sense, which would affect the outcome of the case.