noun
anger, annoyance
B1
Ärger: a masculine noun meaning 'anger' or 'annoyance', often uncountable. Singular der Ärger, genitive des Ärgers; plural rarely used. Common collocations: Ärger haben, Ärger mit jemandem. Not reflexive; used as abstract emotion or trouble rather than a countable complaint. Often appears in set phrases.
Examples
Sein Verhalten hat großen Ärger verursacht.
His behavior caused a lot of anger.
Mein Chef macht mir viel Ärger.
My boss gives me a lot of trouble.
Der Nachbar verursachte Ärger, weil er die Ruhezeit nicht beachtete, sodass die Gemeinde einschreiten musste.
The neighbor caused trouble because he didn't observe the quiet hours, so the municipality had to intervene.
Details
Mnemonics
Picture steam coming out of someone's head to show they are full of 'Ärger'.
der Ärger — think 'der' as a heavy door slamming in anger.
Notes
Often used as an uncountable/mass noun (much 'Ärger'). Plural usage is rare; context often determines whether it is countable. | Singular-only noun; plural forms are not applicable.