

Meine Freundin ist neunzehn Jahre alt.
[ˈmaɪ̯nə ˈfrɔɪ̯ndɪn ˈɪst ˈnɔɪ̯ntseːn ˈjaːrə ˈalt.]
My girlfriend is nineteen years old.
Das Buch kostet neunzehn Euro.
[das ˈbuːx ˈkɔstət ˈnɔɪ̯ntseːn ˈɔɪ̯ro.]
The book costs nineteen euros.
Kommt der Zug um neunzehn Uhr?
[ˈkɔmt deːɐ ˈtsuːk ˈʊm ˈnɔɪ̯ntseːn ˈuːɐ̯?]
Does the train arrive at seven p.m.?
"neunzehn" is in the lesson "Numbers" (Level 3), along with 19 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.