The Collaborative International Dictionary of English v.0.48:

Two \Two\, n.
   1. The sum of one and one; the number next greater than one,
      and next less than three; two units or objects.
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   2. A symbol representing two units, as 2, II., or ii.
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   In two, asunder; into two parts; in halves; in twain; as,
      cut in two.
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