WordNet (r) 3.0 (2006):

pull out
    v 1: move out or away; "The troops pulled out after the cease-
         fire" [syn: pull out, get out] [ant: draw in, get
         in, move in, pull in]
    2: bring, take, or pull out of a container or from under a
       cover; "draw a weapon"; "pull out a gun"; "The mugger pulled
       a knife on his victim" [syn: draw, pull, pull out, get
       out, take out]
    3: remove, usually with some force or effort; also used in an
       abstract sense; "pull weeds"; "extract a bad tooth"; "take
       out a splinter"; "extract information from the telegram"
       [syn: extract, pull out, pull, pull up, take out,
       draw out]
    4: remove oneself from an obligation; "He bowed out when he
       heard how much work was involved" [syn: chicken out, back
       off, pull out, back down, bow out]

Moby Thesaurus II by Grady Ward, 1.0:

185 Moby Thesaurus words for "pull out":
   abandon, abrupt, alienate, apostatize, avulse, back down, back out,
   bank, be getting along, beat a retreat, beg off, betray, bolt,
   break away, buzz off, cast off, cast out, come away, crab, cringe,
   cry off, cut adrift, cut off, cut out, defect, delete, depart,
   depart from, deracinate, desert, dig out, dig up, dip,
   disarticulate, discard, disconnect, disengage, disentangle,
   disjoin, disjoint, dissociate, disunite, divide, divorce, draw,
   draw back, draw in, draw off, draw out, dredge, dredge up,
   drop out, duck, eject, eradicate, estrange, evacuate, evolve,
   evulse, excavate, excise, exit, expel, exsect, extract, extricate,
   fall back, feather, fishtail, flinch, forsake, gang along,
   get along, get away, get off, get on, get out, get under way,
   give ground, give place, go, go along, go away, go back,
   go back on, go off, go on, gouge out, grub up, isolate, jettison,
   jilt, leave, leave behind, leave flat, let down, loop, march off,
   maroon, mine, mosey, move away, move back, move off, move out,
   part, pick out, plow, pluck out, pluck up, porpoise, pull,
   pull away, pull back, pull in, pull up, push down, quarry, quit,
   quit cold, rake out, rat, remove, renege, retire, retract, retreat,
   rip out, roll, root out, root up, run back, run out on, sashay,
   sashay off, say goodbye to, secede, segregate, sell out, separate,
   sequester, set apart, set aside, shove off, shrink, shut off, shy,
   sideslip, skid, spin, spiral, split, stagger along, stand aloof,
   stand apart, stand aside, stand back, stand down, step aside,
   stunt, subtract, take flight, take leave of, take off, take out,
   take wing, tear out, throw off, throw out, throw over,
   toddle along, uncouple, undulate, unearth, unravel, unyoke,
   up and go, uproot, vacate, weed out, wince, wing it, withdraw,
   wrest out, yaw