|Origin:||nigontiene, from nigon 'nine' + tien 'ten'|
the number 19:
It was nineteen minutes past seven.
I was only nineteen (=19 years old).
if you talk nineteen to the dozen, you talk very quickly and without stopping
—nineteenth adjective, pronoun:
in the nineteenth century
her nineteenth birthday
I'm planning to leave on the nineteenth (=the 19th day of the month).