Shipping has multiple meanings. It can be a physical process of transporting goods and cargo, by land, air, and sea. It also can describe the movement of objects by ship. Land or "ground" shipping can be by train or by truck. In Air and Sea shipments, ground transportation's often still required to take the product from its origin to the airport or seaport and then to its destination. Ground transportation's typically more affordable than air shipments, but more expensive than shipping by sea.… (More on Shipping)