Cornelius Vanderbilt was one of the richest and most successful businessmen in American history. There are several synonyms that are often used to describe him. Some of the most common synonyms for Vanderbilt include robber baron, tycoon, magnate, industrialist, financier, and railroad king. These titles are appropriate because Vanderbilt was involved in many different industries throughout his life, from transportation to shipping to oil to real estate. He was known for his ruthless business tactics and his ability to amass enormous wealth, and his legacy has continued to influence American business and industry to this day.