Yes, "metro" and "subway" are generally terms for the same type of high-capacity underground rapid transit system, but their usage is regional. "Metro" is the most internationally recognized term, used in cities like Paris, Tokyo, Madrid, and Montreal. It originates from "Metropolitain," the name of the original Paris system. "Subway" is the preferred term in New York City, Toronto, and Glasgow. In London, the system is officially the "Underground" but is universally known as the "Tube." Other regional names include the "U-Bahn" in Germany and Austria and the "T-Bane" in Scandinavia. While they all refer to grade-separated electric trains, in some contexts, "subway" can specifically refer to a pedestrian underpass (common in the UK), whereas "metro" almost always refers to the train system itself. In 2026, most digital map apps use these terms interchangeably depending on the local language settings of your destination.