[1] : WordNet (r) 2.0

zilch
     n : a quantity of no importance; "it looked like nothing i had
         ever seen before"; "reduced to nil all the work we had
         done"; "we racked up a pathetic goose egg"; "it was all
         for naught"; "i didn't hear zilch about it" syn: nothing,
          nil, nix, nada, null, aught, cipher, cypher,
          goose egg, naught, zero, zip
see also:
nothing nil nix nada null aught 
cipher cypher goose egg naught zero 
zip 

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

21 moby thesaurus words for "zilch":
   aught, cipher, goose egg, insignificancy, nada, naught, nichts,
   nihil, nil, nix, no such thing, nobody, nothing, nothing at all,
   nothing on earth, nothing whatever, nullity, thing of naught,
   whiffet, whippersnapper, zero

Zilch >> Z Words
Zilch, definition of term: Zilch
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