dispute **
difference *****
difference of opinion
conflict ****

But what you just described goes way beyond a difference of opinion.

We all have our difference of opinion on things like that.

This difference of opinion later led to questions about why the students did not simply head west on their own.

I. As to its position there is some difference of opinion.

There seemed to be no difference of opinion among the players, either.

Now comes the part where there is a difference of opinion.

There seemed to be a difference of opinion among them.

There was a difference of opinion between them on foreign policy.

"There is a difference of opinion on what their role should be here."

My group is quite happy to give 99.9% support, with a few differences of opinion.