To retrace one's steps.
To exercise a racehorse around the racetrack in the opposite direction to that in which races are run.
To taxi down an active runway in the opposite direction to that being used for takeoff.
To repeat or review work already done.
the act of backtracking
To reverse direction and retrace one's steps.
To cause to reverse direction and retrace one's steps.
To return to a previous state of being.
To prevent or refuse to allow passage or progress.
To adjust to a previous setting.
To fold something back; to fold down.