gegeneinander
Translation
against each other, against one another
Examples
Die beiden Mannschaften spielen gegeneinander.
The two teams are playing against each other.
Sie arbeiten gegeneinander statt miteinander.
They are working against each other instead of with each other.
Die Autos sind gegeneinander geprallt.
The cars crashed into each other.
Grammar Patterns
to play/fight against each other The two teams are playing against each other.
Similar Words
Antonyms: miteinander (with each other), füreinander (for each other)
Etymology
A combination of 'gegen' (against) and 'einander' (each other). Literally 'against each other'.
Memory Tips
Break it down: 'gegen' (against) + 'einander' (each other). The meaning is transparent.