WordNet (r) 3.0 (2006):

heist
    n 1: the act of stealing [syn: heist, rip-off]
    2: robbery at gunpoint [syn: armed robbery, heist, holdup,
       stickup]
    v 1: commit a burglary; enter and rob a dwelling [syn:
         burglarize, burglarise, burgle, heist]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "heist":
   armed robbery, asportation, assault and robbery, banditry,
   bank robbery, boost, buoy up, burglary, caper, cast up,
   cattle lifting, cattle stealing, clout, commit robbery, cop,
   elevate, erect, escalate, extortion, filch, grab, heave, heft,
   heighten, highway robbery, hijack, hijacking, hike, hoick, hoist,
   hold up, holdup, hook, jerk up, job, knock over, knock up,
   levitate, lift, lift up, lob, loft, mug, mugging, nab, nail, nick,
   perk up, pinch, pocket picking, purse snatching, raise, raise up,
   rear, rear up, rip off, rip-off, rise, rob, robbery, robbing,
   set up, sky, snitch, steal, stick up, stickup, stickup job, swipe,
   theft, throw up, up, upbuoy, upcast, upheave, uphoist, uphold,
   uplift, upraise, uprear, upthrow