(US) A train stopping at most of the stations on a line.

simple past tense and past participle of paper-train

present participle of paper-train

(transitive) To housetrain (a dog) by encouraging it to defecate on old newspapers or similar material placed in a designated spot within the home.

(rail transport) A passenger train that stops at most, if not all, of the stations on the route in the course of its journey.

present participle of toilet-train

plural of toilet training

simple past tense and past participle of toilet-train

(rail transport, UK, chiefly historical) Originally a requirement in the Railway Regulation Act 1844 for railways to run at least one train a day each way, at a cost to passengers of no more than one penny a mile, on every railway line in the country. Presently the term is used for passenger trains that serve a line or station only once a day or week to avoid the cost of applying for closure.

(rail transport, UK) A smaller-profile underground train which operates through the tube tunnels under London, which have a small cross section.