A series of connected railroad cars pulled or pushed by one or more locomotives. The train arrived at the station right on time.
A sequence of events or thoughts. She lost her train of thought during the presentation.
A part of a formal dress that trails behind the wearer. The bride's dress had a long, flowing train.
A group of people, animals, or vehicles traveling together. A train of camels crossed the desert.
A connected set of mechanical gears or parts that transmits motion, especially in machinery such as clocks or vehicles. The engineer inspected the gear train inside the gearbox.
A long trailing line or wake left behind by something moving, such as smoke, dust, or light. A thin train of smoke rose from the extinguished candle.