The term 'Freight Hauler' refers to a person who transports goods from one place to another, usually by truck. The job is often done by a SEMI-truck driver, which is indicated by the four-letter solution to the crossword puzzle. This type of job requires a great deal of skill and knowledge of the roads and regulations, as well as the ability to handle large vehicles safely. Freight haulers are essential for the transportation of goods across the country, and they play an important role in the economy.