Source : Webster's Revised Unabridged Dictionary (1913)

Fourteenth \Four"teenth`\, a. [Cf. OE. fourtende, fourtethe, AS.
   fe['o]werteo[eth]a.]
   1. Next in order after the thirteenth; as, the fourteenth day
      of the month.

   2. Making or constituting one of fourteen equal parts into
      which anything may be derived.

Fourteenth \Four"teenth`\, n.
   1. One of fourteen equal parts into which one whole may be
      divided; the quotient of a unit divided by fourteen; one
      next after the thirteenth.

   2. (Mus.) The octave of the seventh.

Source : WordNet®

fourteenth
     n : position 14 in a countable series of things

fourteenth
     adj : coming next after the thirteenth in position [syn: {14th}]