The Collaborative International Dictionary of English v.0.48:

Fourteen \Four"teen`\, a. [OE. fourtene, feowertene, AS.
   fe['o]wert[=y]ne, fe['o]wert[=e]ne. See Four, and Ten,
   and cf. Forty.]
   Four and ten more; twice seven.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fourteen \Four"teen`\, n.
   1. The sum of ten and four; forteen units or objects.
      [1913 Webster]

   2. A symbol representing fourteen, as 14 or xiv.
      [1913 Webster]

WordNet (r) 3.0 (2006):

fourteen
    adj 1: being one more than thirteen [syn: fourteen, 14,
           xiv]
    n 1: the cardinal number that is the sum of thirteen and one
         [syn: fourteen, 14, XIV]