17

from WordNet (r) 3.0 (2006)

17
    adj 1: being one more than sixteen [syn: {seventeen}, {17},
           {xvii}]
    n 1: the cardinal number that is the sum of sixteen and one
         [syn: {seventeen}, {17}, {XVII}]

from The Collaborative International Dictionary of English v.0.48

17 \17\ adj.
   1. denoting a quantity consisting of one more than sixteen
      and one less than eighteen; -- representing the number
      seventeen as Arabic numerals

   Syn: seventeen, xvii
        [WordNet 1.5 +PJC]