A person who holds a real estate license is most commonly referred to as a(n)

The term that most accurately describes a person who holds a real estate license is "agent." In the realm of real estate, an agent is an individual who represents buyers or sellers in real estate transactions. They are typically licensed professionals who have passed the necessary exams and regulations to facilitate property sales and purchases.

The designation "broker," while it describes a more advanced level of licensure that allows individuals to operate independent real estate businesses and hire agents, does not apply to those who hold a standard real estate license. Thus, while brokers are licensed individuals, they represent a specialized category within the profession.

The term "realtor" refers specifically to members of the National Association of Realtors (NAR), which is an established trade organization. While many agents and brokers are realtors, not all agents hold this designation. Therefore, "realtor" is more specific and does not encompass all licensed real estate professionals.

The choice "vendor" is not appropriate in this context since it generally refers to a seller of goods or services rather than a licensed real estate professional.

Hence, the most accurate and general term for someone holding a real estate license is "agent," as it encompasses both buyers' and sellers' representatives in the real estate market.