[1] : WordNet (r) 2.0

conk out
     v 1: stop operating or functioning; "the engine finally went";
          "the car died on the road"; "the bus we travelled in
          broke down on the way to town"; "the coffee maker
          broke"; "the engine failed on the way to town"; "her
          eyesight went after the accident" syn: fail, go bad,
           give way, die, give out, go, break, break
          down
     2: 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
see also:
fail go bad give way die give out go 
break break down poop out peter out run down 
run out 

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

60 moby thesaurus words for "conk out":
   be done for, be no more, break, break down, cave in, cease,
   collapse, come apart, come to naught, come to nothing,
   come unstuck, crumble, decline, die, disappear, disintegrate,
   droop, drop, end, expire, fade, fade away, fail, faint, fizzle out,
   flag, flame out, give out, give way, go, go dead, go downhill,
   go haywire, go kaput, go soft, go to pieces, go wrong,
   hit the skids, languish, lose power, pack up, pass, pass away,
   peg out, perish, peter out, pine, poop out, run out, sink,
   sputter and stop, stall, stick, succumb, vanish, weaken, wear away,
   wear thin, wilt, yield

Bale Out >> B Words
Bale Out, definition of term: Bale Out
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Bawl Out >> B Words
Bawl Out, definition of term: Bawl Out
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Bear Out >> B Words
Bear Out, definition of term: Bear Out
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Bail Out >> B Words
Bail Out, definition of term: Bail Out
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Back Out >> B Words
Back Out, definition of term: Back Out
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Air Out >> A Words
Air Out, definition of term: Air Out
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Ask Out >> A Words
Ask Out, definition of term: Ask Out
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Act Out >> A Words
Act Out, definition of term: Act Out
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