nineteen[
,nain'ti:n]
num. 十

, 十

nineteen[ noun ]- the cardinal number that is the sum of eighteen and one
<noun.quantity>
[ adj ]- being one more than eighteen
<adj.all>

Nineteen \Nine"teen`\, a. [AS. nigont[=y]ne, nigont[=e]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.