Definition of retrack in US English:

retrack

verb

  • 1with object To retrace (a course, period of time, etc.); to follow (one's track) again.

  • 2no object To go back, to retrace one's steps.

  • 3To replace (a train or its wheels) on the track after a derailment.

  • 4To lay new track for (a railway line, etc.).

Origin

Late 18th century. From re- + track.

Pronunciation

retrack

/ˌriːˈtrak/