

Du musst mit dem Rauchen aufhören.
[ˈduː ˈmʊst ˈmɪt ˈdeːm ˈraʊ̯xn̩ ˈaʊ̯fhøːrən.]
You have to stop smoking.
Wann wird der Regen endlich aufhören?
[ˈvan ˈvɪrt deːɐ ˈreːɡn̩ ˈɛntlɪç ˈaʊ̯fhøːrən?]
When will the rain finally stop?
Lass uns jetzt mit der Arbeit aufhören.
[ˈlaːs ˈʊns ˈjɛtst ˈmɪt deːɐ ˈarbaɪ̯t ˈaʊ̯fhøːrən.]
Let's stop working now.
"aufhören" is in the lesson "Verb antonyms" (Level 8), along with 15 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.