However, if you're looking for a related noun, here are some possibilities:
* Train travel: Refers to the act of traveling by train.
* Train journey: A specific instance of traveling by train.
* Train station: A place where trains stop for passengers to board or disembark.
* Train line: A route or track system used by trains.
* Train set: A toy model of a train.
* Train driver: A person who operates a train.
* Train carriage: A compartment within a train that carries passengers.
* Train schedule: A timetable showing the arrival and departure times of trains.
Let me know if you had a specific type of noun in mind, and I'll do my best to help!