Undergarments worn by incontinent people, typically infants, to aid in toilet training during the transition between diapers and underpants.

(exercise) Training based upon a series of high-intensity workouts interspersed with rest or relief periods.

plural of local train

plural of ambulance train

(rail transport, dated) In wartime, a special train provided for the conveyance of wounded servicemen.

Alternative spelling of hog train

A train for transporting pigs. / A train of a class which is used by the poor and tramps. / Any means of getting by cheap when travelling, budget transport. / Little expense in life, living like a tramp.

plural of hog-train

plural of train pipe

(rail transport) A brake pipe on a rail vehicle through which compressed air or vacuum is passed to operate the brakes throughout a train.