[1] : The Collaborative International Dictionary of English v.0.48

between \between"\, prep. oe. bytwene, bitweonen, as.
   betwe'onan, betwe'onum; prefix be- by + a form fr. as.
   tw=a two, akin to goth. tweihnai two apiece. see twain,
   and cf. atween, betwixt.
   1. in the space which separates; betwixt; as, new york is
      between boston and philadelphia.
      1913 webster

   2. used in expressing motion from one body or place to
      another; from one to another of two.
      1913 webster

            if things should go so between them.  --bacon.
      1913 webster

   3. belonging in common to two; shared by both.
      1913 webster

            castor and pollux with only one soul between them.
                                                  --locke.
      1913 webster

   4. belonging to, or participated in by, two, and involving
      reciprocal action or affecting their mutual relation; as,
      opposition between science and religion.
      1913 webster

            an intestine struggle, open or secret, between
            authority and liberty.                --hume.
      1913 webster

   5. with relation to two, as involved in an act or attribute
      of which another is the agent or subject; as, to judge
      between or to choose between courses; to distinguish
      between you and me; to mediate between nations.
      1913 webster

   6. in intermediate relation to, in respect to time, quantity,
      or degree; as, between nine and ten o'clock.
      1913 webster

   between decks, the space, or in the space, between the
      decks of a vessel.

   between ourselves, between you and me, between
   themselves, in confidence; with the understanding that the
      matter is not to be communicated to others.
      1913 webster

   syn: between, among.

   usage: between etymologically indicates only two; as, a
          quarrel between two men or two nations; to be between
          two fires, etc. it is however extended to more than
          two in expressing a certain relation.

                i . . . hope that between public business,
                improving studies, and domestic pleasures,
                neither melancholy nor caprice will find any
                place for entrance.               --johnson.
          1913 webster among implies a mass or collection of
          things or persons, and always supposes more than two;
          as, the prize money was equally divided among the
          ship's crew.
          1913 webster
see also:
twain atween betwixt between decks between ourselves between you and me 
between themselves between among 

Between >> B Words
Between, definition of term: Between
between_pag1.html

Ourselves >> O Words
Ourselves, definition of term: Ourselves
ourselves_pag1.html

In Between >> I Words
In Between, definition of term: In Between
in+between_pag1.html