German phrase
Angenommen, ~.
Meaning
Suppose ___
When to use it
It sets up a possible case. Common in conversation when deciding what to do.
Example dialogue
Sollen wir das Picknick morgen machen?
Shall we have the picnic tomorrow?
Angenommen, es regnet. Dann verschieben wir das Picknick.
Suppose it rains. Then we'll postpone the picnic.