A train station, railway station, railroad station, or depot (see below) is a railway facility where trains regularly stop to load or unload passengers or freight.
It generally consists of at least one track-side platform and a station building (depot) providing such ancillary services as ticket sales and waiting rooms. If a station is on a single-track line, it often has a passing loop to facilitate traffic movements. The smallest stations are most often referred to as "stops" or, in some parts of the world, as "halts" (flag stops).
Stations may be at ground level, underground, or elevated. Connections may be available to intersecting rail lines or other transport modes such as buses, trams or other rapid transit systems.
In Britain and other Commonwealth countries, traditional usage favours railway station or simply station, even though train station, which is often perceived as an Americanism, is now about as common as railway station; railroad station is not used, the term railroad being obsolete in the United States. In British usage, the word station is commonly understood to mean a railway station unless otherwise qualified.
In the United States, the most common term in contemporary usage is train station. Railway station and railroad station are less frequent.
In North America, the term depot is used most commonly as an alternative name for station, along with the compound forms train depot, railway depot, and railroad depot, but also applicable for buses and other vehicles, especially in rural areas where it might be understood as a direct equivalent to stop or halt. Outside North America, a depot is "[a] place where buses, trains, or other vehicles are housed and maintained and from which they are dispatched for service."