The Collaborative International Dictionary of English v.0.48:

Creation \Cre*a"tion\ (kr?-A"sh?n), n. [L. creatio: cf. F.
   cr?ation. See Create.]
   1. The act of creating or causing to exist. Specifically, the
      act of bringing the universe or this world into existence.
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            From the creation to the general doom. --Shak.
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            As when a new particle of matter dotn begin to
            exist, in rerum natura, which had before no being;
            and this we call creation.            --Locke.
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   2. That which is created; that which is produced or caused to
      exist, as the world or some original work of art or of the
      imagination; nature.
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            We know that the whole creation groaneth. --Rom.
                                                  viii. 22.
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            A dagger of the mind, a false creation. --Shak.
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            Choice pictures and creations of curious art.
                                                  --Beaconsfield.
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   3. The act of constituting or investing with a new character;
      appointment; formation.
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            An Irish peer of recent creation.     --Landor.
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WordNet (r) 3.0 (2006):

creation
    n 1: the human act of creating [syn: creation, creative
         activity]
    2: an artifact that has been brought into existence by someone
    3: the event that occurred at the beginning of something; "from
       its creation the plan was doomed to failure" [syn:
       creation, conception]
    4: the act of starting something for the first time; introducing
       something new; "she looked forward to her initiation as an
       adult"; "the foundation of a new scientific society" [syn:
       initiation, founding, foundation, institution,
       origination, creation, innovation, introduction,
       instauration]
    5: (theology) God's act of bringing the universe into existence
    6: everything that exists anywhere; "they study the evolution of
       the universe"; "the biggest tree in existence" [syn:
       universe, existence, creation, world, cosmos,
       macrocosm]