Translation

1. annoyance, anger masculine, no-plural, strong

   seinem Ärger Luft machen.

   to vent one's anger.

2. aggravation source:freedict-eng-deu-dictd
3. anger source:wikdict-en-de-stardict
4. anger source:dictcc-tuchemnitz-de-en
5. trouble, an unpleasant or dangerous situation masculine, no-plural, strong

   Es wird Ärger geben.

   There will be trouble.

Declension