资料来源 : pyDict

十九,十九个

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Nineteen \Nine"teen`\, a. [AS. nigont?ne, nigont?ne. See {Nine},
   and {Ten}.]
   Nine and ten; eighteen and one more; one less than twenty;
   as, nineteen months.

Nineteen \Nine"teen`\, n.
   1. The number greater than eighteen by a unit; the sum of ten
      and nine; nineteen units or objects.

   2. A symbol for nineteen units, as 19 or xix.

资料来源 : WordNet®

nineteen
     adj : being one more than eighteen [syn: {19}, {xix}]
     n : the cardinal number that is the sum of eighteen and one
         [syn: {19}, {XIX}]