German phrase
Ich bin anderer Meinung.
Meaning
I disagree
When to use it
It shows a different view. A reason can make it more convincing.
Example dialogue
Ich bin anderer Meinung. Die Kosten sind zu hoch.
I disagree. The costs are too high.
Das mag sein, aber langfristig sparen wir Geld.
That may be so, but we will save money in the long term.