Truck drivers, also known as lorry drivers, are responsible for transporting goods from one place to another. Teamsters, which is a nine-letter word, is a term used to refer to members of the International Brotherhood of Teamsters, a labor union that represents truck drivers and other transportation workers. Rigmasters, a ten-letter word, is a term used to refer to experienced truck drivers who are responsible for operating large rigs and hauling heavy loads.