[1] : WordNet (r) 2.0

pull back
     v 1: pull back or move away or backward; "the enemy withdrew";
          "the limo pulled away from the curb" syn: withdraw, retreat,
           pull away, draw back, recede, retire, move
          back
     2: use a surgical instrument to hold open the edges of a wound
        or an organ syn: retract, draw back
     3: move to a rearward position; pull towards the back; "pull
        back your arms"
     4: pull back the sling of a bow; "the archers were drawing
        their bows" syn: draw
     5: make a retreat from an earlier commitment or activity;
        "we'll have to crawfish out from meeting with him"; "he
        backed out of his earlier promise"; "the aggressive
        investment company pulled in its horns" syn: retreat, back
        out, back away, crawfish, crawfish out, pull in
        one's horns, withdraw
see also:
withdraw retreat pull away draw back recede retire 
move back retract draw back out back away 
crawfish crawfish out pull in one's horns 

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

151 moby thesaurus words for "pull back":
   about the bush, abrupt, alienate, avoid, back down, back out,
   backslide, balance, beat a retreat, beat around, beg the question,
   blench, blink, boggle, cast off, cast out, cock, cringe,
   cut adrift, cut off, cut out, debate, delete, deliberate, demur,
   depart, disarticulate, disconnect, disengage, disjoin, disjoint,
   dissociate, disunite, divide, divorce, dodge, draw back, draw in,
   draw off, duck, eject, equivocate, estrange, evade, expel, fade,
   fall astern, fall back, fall behind, falter, fear, fence,
   fight shy of, flinch, get behind, give ground, give place, go back,
   go backwards, go behind, hang back, hang off, have qualms, hedge,
   hem and haw, hesitate, hold off, hover, hum and haw, isolate,
   jerk back, jib, lapse, leave, lose ground, make bones about,
   move back, parry, part, pause, ponder, pull away, pull in,
   pull out, pussyfoot, put off, quail, recede, recidivate, recoil,
   reel back, regress, relapse, retire, retract, retreat, retrocede,
   retroflex, retrograde, retrogress, return, revert, run back,
   scruple, segregate, separate, sequester, set apart, set aside,
   sheer off, shift, shift off, shilly-shally, shrink, shrink back,
   shut off, shy, shy at, shy away, shy off, sidestep, slip back,
   split, stand aloof, stand apart, stand aside, stand back,
   start aside, start back, step aside, stick at, stickle,
   stop to consider, straddle the fence, strain, strain at, subtract,
   swerve, think twice about, throw off, throw out, turn aside,
   uncouple, unyoke, ward off, waver, weasel, weasel out, wince,
   withdraw, yield

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