The Collaborative International Dictionary of English v.0.48:

Something \Some"thing\, n.
   1. Anything unknown, undetermined, or not specifically
      designated; a certain indefinite thing; an indeterminate
      or unknown event; an unspecified task, work, or thing.
      [1913 Webster]

            There is something in the wind.       --Shak.
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            The whole world has something to do, something to
            talk of, something to wish for, and something to be
            employed about.                       --Pope.
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            Something attemped, something done,
            Has earned a night's repose.          --Longfellow.
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   2. A part; a portion, more or less; an indefinite quantity or
      degree; a little.
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            Something yet of doubt remains.       --Milton.
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            Something of it arises from our infant state. --I.
                                                  Watts.
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   3. A person or thing importance.
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            If a man thinketh himself to be something, when he
            is nothing, he deceiveth himself.     --Gal. vi. 3.
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The Collaborative International Dictionary of English v.0.48:

Something \Some"thing\, adv.
   In some degree; somewhat; to some extent; at some distance.
   --Shak.
   [1913 Webster]

         I something fear my father's wrath.      --Shak.
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         We have something fairer play than a reasoner could
         have expected formerly.                  --Burke.
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         My sense of touch is something coarse.   --Tennyson.
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         It must be done to-night,
         And something from the palace.           --Shak.
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Moby Thesaurus II by Grady Ward, 1.0:

110 Moby Thesaurus words for "something":
   Establishment, VIP, affair, an existence, any, anything, article,
   artifact, aught, baron, being, big gun, big man, big name, bigwig,
   body, brass, brass hat, celebrity, creature, critter, dignitary,
   dignity, dingus, dofunny, dohickey, dojigger, dojiggy, domajig,
   domajigger, doodad, dowhacky, elder, entelechy, entity, eppes,
   etwas, existence, existent, fairly, father, figure, flumadiddle,
   gadget, gigamaree, gimmick, gizmo, great man, hickey, hootenanny,
   hootmalalie, important person, individual, interests, jigger,
   kind of, life, lion, lords of creation, magnate, man of mark,
   material thing, moderately, mogul, monad, more or less, nabob,
   name, notability, notable, object, organism, panjandrum, person,
   person of renown, persona, personage, personality,
   pillar of society, power, power elite, pretty, quelque chose,
   rather, ruling circle, sachem, some, somebody, somewhat, sort of,
   soul, the great, the top, thing, thingum, thingumabob, thingumadad,
   thingumadoodle, thingumajig, thingumajigger, thingumaree,
   thingummy, top brass, top people, tycoon, unit,
   very important person, whatchy, widget, worthy