A real estate agent who is a member of the National Association of REALTORS®, which means that he or she must uphold the standards of the association and its code of ethics.
Anyone who earns a real estate license can be called a real estate agent, whether that license is as a sales professional, an associate broker or a broker. State requirements vary, but in all states you must take a minimum number of classes and pass a test to earn your license.
A person who has taken education beyond the agent level as required by state laws and has passed a broker's license exam. Brokers can work alone or they can hire agents to work for them.