railcar

This term describes a single unit of railway transport, often distinguishing a self-contained vehicle from a long train consisting of many coupled cars. It frequently evokes images of smaller, specialized transport such as maintenance vehicles or light rail units used in urban transit systems. As a countable noun, it follows standard English pluralization rules, though in technical railway contexts, it may be used interchangeably with terms like carriage or wagon depending on whether it carries passengers or freight.