A liner train, also known as a container train or an intermodal train, is a type of freight train that transports shipping containers between ports or inland hubs. Synonyms for liner trains include boxcar trains, bulk trains, stack trains, and rail shuttles. A boxcar train typically refers to a train carrying goods in enclosed wagons, whereas a bulk train may transport loose items like grain or coal. Similarly, stack trains are made up of intermodal freight containers that are stacked on top of each other, while rail shuttles carry goods between ports and inland terminals. Regardless of the name used, liner trains have become an important part of global transportation and logistics networks, efficiently transporting goods across land and sea.