WordNet (r) 3.0 (2006):

run out
    v 1: become used up; be exhausted; "Our supplies finally ran
         out"
    2: flow off gradually; "The rain water drains into this big vat"
       [syn: drain, run out]
    3: leave suddenly and as if in a hurry; "The listeners bolted
       when he discussed his strange ideas"; "When she started to
       tell silly stories, I ran out" [syn: run off, run out,
       bolt, bolt out, beetle off]
    4: lose validity; "My passports expired last month" [syn: run
       out, expire]
    5: flow, run or fall out and become lost; "The milk spilled
       across the floor"; "The wine spilled onto the table" [syn:
       spill, run out]
    6: exhaust the supply of; "We ran out of time just as the
       discussion was getting interesting"
    7: prove insufficient; "The water supply for the town failed
       after a long drought" [syn: fail, run out, give out]
    8: use up all one's strength and energy and stop working; "At
       the end of the march, I pooped out" [syn: poop out, peter
       out, run down, run out, conk out]

Moby Thesaurus II by Grady Ward, 1.0:

208 Moby Thesaurus words for "run out":
   advance, ago, antiquated, antique, apostatize, be all over,
   be consumed, be done for, be no more, be used up, become extinct,
   become void, betray, blow, blow out, blow over, blown over, bolt,
   bow out, break away, break down, break out, break through,
   burn out, by, bygone, bypast, cast out, cease, chase out, chatter,
   collapse, come forth, come out, come to naught, come to nothing,
   conk out, continue, crack up, dated, dead, dead and buried,
   debouch, deceased, defect, defunct, depart, departed, deport,
   desert, die, die away, disappear, displace, disused, drag out,
   drain, drain out, draw out, drive out, droop, drop, drum out,
   dry up, egress, elapse, elapsed, emerge, empty, end, endure, erupt,
   exhaust, exile, exit, expatriate, expel, expire, expired, extend,
   extinct, fade away, faint, fatigue, fill out, find vent, finished,
   flag, flit, flow, flow on, flow out, fly, force out, forgotten,
   freeze out, gasp, get out, get tired, give out, glide, go, go by,
   go on, go out, gone, gone glimmering, gone out, gone-by,
   grow weary, gush, gush out, harry out, has-been, have it,
   have its time, hunt out, irrecoverable, issue, issue forth, jade,
   jet, lapse, lapsed, last, leak out, let down, make an exit,
   march out, never finish, no more, obsolete, ooze out, ostracize,
   oust, out, out of style, out of use, outflow, outpour, outworn,
   over, pad, pant, pass, pass away, pass by, pass out, passe, passed,
   passed away, past, peg out, perish, perorate, peter out, play out,
   poop out, pour, pour out, press on, proceed, protract, puff,
   puff and blow, pull out, push out, rat, roll on, rout out, run,
   run down, run dry, run its course, run on, run out on, secede,
   sell out, sink, slide, slip, sluice out, smoke out,
   speak at length, spew out, spin out, spout, spout out, spurt,
   stretch out, string out, succumb, surge, tire, transport, vanish,
   vanished, vomit forth, walk out, waste, wear away, wear off, weary,
   well, well out, wheeze, wilt, wound up