nine ‧ teen /ˌnaɪnˈtiːn◂/ BrE AmE number
[ Language: Old English ; Origin: nigontiene , from nigon 'nine' + tien 'ten' ]
1 . the number 19:
It was nineteen minutes past seven.
I was only nineteen (=19 years old) .
2 . nineteen to the dozen 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) .