1. [n]  the cardinal number that is the sum of fifteen and one
2. [adj]  being one more than fifteen

Sixteen
This compilation of short stories about the experience of being 16 includes works by teen and adult writers written in styles ranging from humorous to poignant. Authors include Meg Cabot (THE PRINCESS DIARIES), Julianna Baggott (GIRL TALK), and Megan McCafferty herself, with a prequel--featuring Jessica Darling--to SLOPPY FIRSTS. The pieces cover various 16-year old scenarios including learning how to drive, first kisses, and moving away from friends.

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1. \Six"teen`\, a. [AS. sixt?ne, sixt?ne. See {Six}, and
   {Ten}, and cf. {Sixty}.]
   Six and ten; consisting of six and ten; fifteen and one more.
   

2. \Six"teen`\, n.
   1. The number greater by a unit than fifteen; the sum of ten
      and six; sixteen units or objects.
   2. A symbol representing sixteen units, as 16, or xvi.