Used other than figuratively or idiomatically: see run, train. / (intransitive, slang, vulgar) Synonym of gangbang: To have sex with someone as a line going one after the other.

(education, psychology) A Piagetian form of cognitive training in which a person who does not yet understand a concept and others who do understand it are encouraged to discuss it as a group and formulate a consensus.

A type of self-hypnotic relaxation technique developed by German psychiatrist Johannes Heinrich Schultz.

(rail transport) a train run for the purpose of maintenance and repair of railway track.

plural of work train

plural of coal train

(rail transport) a freight train which carries a single commodity: coal.

(medicine) Relating to a monitoring protocol for neuromuscular blockade, where the muscle response to four consecutive stimuli delivered along the path of a nerve is measured to determine the level of blockade.

(medicine, informal) The neuromuscular blockade monitoring method described above.

(chiefly in German-speaking countries and Copenhagen, Denmark) A commuter rail/metro system (generally overground) serving a metropolitan area or A train in such systems