The Collaborative International Dictionary of English v.0.48:

Nothing \Noth"ing\, adv.
   In no degree; not at all; in no wise.
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         Adam, with such counsel nothing swayed.  --Milton.
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         The influence of reason in producing our passions is
         nothing near so extensive as is commonly believed.
                                                  --Burke.
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   Nothing off (Naut.), an order to the steersman to keep the
      vessel close to the wind.
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The Collaborative International Dictionary of English v.0.48:

Nothing \Noth"ing\, n. [From no, a. + thing.]
   1. Not anything; no thing (in the widest sense of the word
      thing); -- opposed to anything and something.
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            Yet had his aspect nothing of severe. --Dryden.
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   2. Nonexistence; nonentity; absence of being; nihility;
      nothingness. --Shak.
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   3. A thing of no account, value, or note; something
      irrelevant and impertinent; something of comparative
      unimportance; utter insignificance; a trifle.
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            Behold, ye are of nothing, and your work of nought.
                                                  --Is. xli. 24.
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            'T is nothing, says the fool; but, says the friend,
            This nothing, sir, will bring you to your end.
                                                  --Dryden.
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   4. (Arith.) A cipher; naught.
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   Nothing but, only; no more than. --Chaucer.

   To make nothing of.
      (a) To make no difficulty of; to consider as trifling or
          important. "We are industrious to preserve our bodies
          from slavery, but we make nothing of suffering our
          souls to be slaves to our lusts." --Ray.
      (b) Not to understand; as, I could make nothing of what he
          said.
          [1913 Webster]

WordNet (r) 3.0 (2006):

nothing
    adv 1: in no respect; to no degree; "he looks nothing like his
           father"
    n 1: 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, zilch, zip, zippo]

Moby Thesaurus II by Grady Ward, 1.0:

86 Moby Thesaurus words for "nothing":
   a little thing, a nobody, a nothing, aught, bagatelle, blank,
   cipher, clean slate, common man, dud, dummy, empty space,
   figurehead, good-for-nothing, goose egg, hardly anything,
   hollow man, inanity, inessential, insignificancy, jackstraw,
   lay figure, lightweight, little fellow, little guy, man of straw,
   marginal matter, matter of indifference, mediocrity, mere nothing,
   minor matter, nada, naught, nebbish, nichts, nihil, nihility, nil,
   nix, no great matter, no such thing, no-account, no-good, nobody,
   nobody one knows, nonentity, nothing at all, nothing in particular,
   nothing on earth, nothing to signify, nothing whatever,
   nothingness, nought, nullity, obscurity, ought, paltry affair,
   peanuts, peu de chose, pip-squeak, punk, puppet, pushover,
   rien du tout, runt, scarcely anything, scrub, shrimp, small fry,
   small potato, small potatoes, squirt, squit, tabula rasa,
   technicality, thing of naught, trifle, unworthy, vacuum, valueless,
   void, whiffet, whippersnapper, wind, zero, zilch