15

from WordNet (r) 3.0 (2006)

15
    adj 1: being one more than fourteen [syn: {fifteen}, {15}, {xv}]
    n 1: the cardinal number that is the sum of fourteen and one
         [syn: {fifteen}, {15}, {XV}]

from The Collaborative International Dictionary of English v.0.48

15 \15\ adj.
   1. denoting a quantity consisting of one more than fourteen
      and one less than sixteen; -- representing the number
      fifteen as Arabic numerals

   Syn: fifteen, xv
        [WordNet 1.5 +PJC]