German phrase
Um ~ zu verhindern, ~.
Meaning
To prevent ___, ___
When to use it
It states an action's purpose. It can sound a little formal.
Example dialogue
Kannst du das noch einmal erklären?
Can you explain that again?
Um Missverständnisse zu verhindern, schreibe ich das kurz auf.
To prevent misunderstandings, I'll write that down briefly.