B1
to have a different opinion than someone else about something
Dictionary examples:
We disagree on whether 'LOL' means 'laugh out loud' or 'lots of love'. (0.0)
I strongly disagree that pineapple belongs on pizza. (0.0)
My alarm clock and I disagree about when morning actually starts. (0.0)
I disagree with most of what he said. (29.5)
I strongly disagree with the decision. (31.5)
Experts disagree about/on the causes of the disease. (35.8)
Few people would disagree that something should be done to reduce the level of crime in the area. (40.3)