verb: Used other than figuratively or idiomatically: see step, back.
verb: (idiomatic) To stop what one is doing and evaluate the current situation.
verb: (idiomatic) To prevent oneself from becoming emotionally involved in a certain situation.
verb: (rail transport, of a driver at a terminal station) to depart driving the train following the train they arrived into the station driving, so as to decrease service turnaround time.
noun: (idiomatic) A reversion to a former state or situation.
