Railway terminology varies from country to country, between model and reality, and even between different professions within the industry. This forum seeks to clarify such diversity.
Rail vehicle generally designed to carry goods / freight etc.
Also: PONY TRUCK - small wheels on a bogie at ends of certain steam locomotives - 2-6-0 wheel arrangement (for example), the '2' would be the wheels (one each side) on the 'pony truck'