A small model railroad with trains that move around the tracks by electricity (formerly by clockwork) / Alternative form of trainset.

(sports) athletic training in a sport other than one's primary sport

(slang) A railway train that travels during the night.

The act of weaning a child off of diapers and teaching them how to use a potty. Not usually distinguished from toilet training although generally children do not use an adult-sized toilet right away.

(railways) A train of passenger cars having the space between the end doors of adjacent cars enclosed, so as to allow the doors to be left open to provide for intercommunication between all the cars.

(rail transport) A unit used in estimating railway running expenses, etc.: the total number of miles run by all the trains of a railroad, or system of railroads, as within a given time, or for a given expenditure.

(iron and steel manufacture) A train of rolls in a rolling mill, for making rails for railroads from blooms or billets.

A conveyor belt used to direct freshly-made sushi around a restaurant, allowing diners to select the dishes they want.

(rail transport) A train whose coaches are connected so as to form a continuous corridor, into which the compartments open.

High intensity training using a variety of different exercise disciplines including, but not limited to, weight lifting, cardio and flexibility.