To either stand on a the roof of a moving train and surf it like a wave, or to hang on and ride on the exterior of a train.

A number of horse-drawn wagons traveling together for safety.

The flow of different thoughts one experiences when thinking.

(cognitive science) A binary waveform representation of neuronal activity, where an action potential is represented as a single 1 separated from others by a stream of zeros.

A regular sequence of wave pulses

(rail transport) A train pulled by a steam locomotive.

plural of steam train

An attendant who supports the train of a dignitary.

plural of Dotto train

(of a pet) Trained not to excrete indoors. / (by extension) Exhibiting behavior and habits that are consistent with good housekeeping.