The Collaborative International Dictionary of English v.0.48:

Among \A*mong"\, Amongst \A*mongst"\, prep. [OE. amongist,
   amonges, amonge, among, AS. onmang, ongemang, gemang, in a
   crowd or mixture. For the ending -st see Amidst. See
   Mingle.]
   1. Mixed or mingled; surrounded by.
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            They heard,
            And from his presence hid themselves among
            The thickest trees.                   --Milton.
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   2. Conjoined, or associated with, or making part of the
      number of; in the number or class of.
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            Blessed art thou among women.         --Luke i. 28.
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   3. Expressing a relation of dispersion, distribution, etc.;
      also, a relation of reciprocal action.
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            What news among the merchants?        --Shak.
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            Human sacrifices were practiced among them. --Hume.
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            Divide that gold amongst you.         --Marlowe.
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            Whether they quarreled among themselves, or with
            their neighbors.                      --Addison.
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   Syn: Amidst; between. See Amidst, Between.
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Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "among":
   amid, amidst, among, amongst, at, between, betwixt,
   betwixt and between, by, from, in, mid, midst, near, next to, on,
   to, together with, toward, with