Meaning : Retrace one's course.
Example :
The hikers got into a storm and had to turn back.
Synonyms : backtrack, double back
Meaning : Force to go away. Used both with concrete and metaphoric meanings.
Example :
Drive away potential burglars.
Drive away bad thoughts.
Dispel doubts.
The supermarket had to turn back many disappointed customers.
Synonyms : chase away, dispel, drive away, drive off, drive out, run off