Twelve

1. n. A symbol representing twelve units, as 12, or xii.
2. a. One more that eleven; two and ten; twice six; a dozen.
3. n. The number next following eleven; the sum of ten and two, or of twice six; twelve units or objects; a dozen.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.