twelve

from WordNet (r) 3.0 (2006)
twelve
    adj 1: denoting a quantity consisting of 12 items or units [syn:
           {twelve}, {12}, {xii}, {dozen}]
    n 1: the cardinal number that is the sum of eleven and one [syn:
         {twelve}, {12}, {XII}, {dozen}]
    
from The Collaborative International Dictionary of English v.0.48
Twelve \Twelve\, a. [OE. twelve, twelf, AS. twelf; akin to
   OFries. twelf, twelef, twilif, OS. twelif, D. twaalf, G.
   zw["o]lf, OHG. zwelif, Icel. t[=o]lf, Sw. tolf, Dan. tolv,
   Goth. twalif, from the root of E. two + the same element as
   in the second part of E. eleven. See {Two}, and {Eleven}.]
   One more that eleven; two and ten; twice six; a dozen.
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   {Twelve-men's morris}. See the Note under {Morris}.

   {Twelve Tables}. (Rom. Antiq.) See under {Table}.
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from The Collaborative International Dictionary of English v.0.48
Twelve \Twelve\, n.
   1. The number next following eleven; the sum of ten and two,
      or of twice six; twelve units or objects; a dozen.
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   2. A symbol representing twelve units, as 12, or xii.
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   {The Twelve} (Script.), the twelve apostles. --Matt. xxvi.
      20.
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