[1] : WordNet (r) 2.0

turn back
     v 1: retrace one's course; "the hikers got into a storm and had
          to turn back" syn: backtrack, double back
     2: go back to a previous state; "we reverted to the old rules"
        syn: revert, return, retrovert, regress
     3: force to go away; used both with concrete and metaphoric
        meanings; "drive away potential burglars"; "drive away bad
        thoughts"; "dispel doubts"; "the supermarket had to turn
        back many disappointed customers" syn: chase away, drive
        out, drive away, dispel, drive off, run off
     4: hold back, as of a danger or an enemy; check the expansion
        or influence of; "arrest the downward trend"; "check the
        growth of communism in sout east asia"; "contain the rebel
        movement"; "turn back the tide of communism" syn: check,
         arrest, stop, contain, hold back
see also:
backtrack double back revert return retrovert regress 
chase away drive out drive away dispel drive off 
run off check arrest stop contain 
hold back 

[2] : Moby Thesaurus II by Grady Ward, 1.0

146 moby thesaurus words for "turn back":
   about ship, assimilate to, avert, back and fill, bear away,
   bear off, bear to starboard, beat, beat about, beat back, become,
   box off, break, break back, bring about, bring round, bring to,
   brush off, cant, cant round, cast, cast about, change, change back,
   change course, change into, change over, change the heading, chase,
   chase away, chase off, come about, come again, come back,
   come home, come up again, convert, cry back, cut, dismiss,
   do a flip-flop, do an about-face, do over, double, double a point,
   double back, draw aside, drive away, drive back, ease off, echo,
   edge off, fend off, fetch about, flip-flop, fly off, gee, glance,
   glance off, go about, go back, go home, go off, gybe, hark back,
   haw, head off, heave round, hold off, jib, jibe, jibe all standing,
   keep coming, keep off, make, make over, make way for, miss stays,
   move aside, naturalize, pack off, ply, push back, put about,
   put back, react, reappear, rebuff, reconvert, recur, reduce to,
   refuse, render, reoccur, repeat, repel, repulse, resolve into,
   resound, resume, return, reverberate, reverse, revert,
   round a point, send away, send off, send packing, sheer, sheer off,
   shift, shove aside, shunt, shy, shy off, side, sidestep, sidetrack,
   sidle, slew, snub, spurn, steer clear of, step aside, swerve,
   swing round, swing the stern, switch, switch over, tack,
   throw about, thrust back, transform, turn, turn about, turn around,
   turn aside, turn away, turn into, veer, veer off, ward off, wear,
   wear ship, wind, yaw

Back >> B Words
Back, definition of term: Back
back_pag1.html

Back Off >> B Words
Back Off, definition of term: Back Off
back+off_pag1.html

Back Out >> B Words
Back Out, definition of term: Back Out
back+out_pag1.html

Back Up >> B Words
Back Up, definition of term: Back Up
back+up_pag1.html

Back Link >> B Words
Back Link, definition of term: Back Link
back+link_pag1.html

Back Down >> B Words
Back Down, definition of term: Back Down
back+down_pag1.html

Back Door >> B Words
Back Door, definition of term: Back Door
back+door_pag1.html

Back End >> B Words
Back End, definition of term: Back End
back+end_pag1.html

Back Country >> B Words
Back Country, definition of term: Back Country
back+country_pag1.html

Answer Back >> A Words
Answer Back, definition of term: Answer Back
answer+back_pag1.html