1. to have a different opinion about something
2. to argue or quarrel about something
3. to be unsuitable or harmful to someone
Usage: often used with ‘with’

Examples

• I disagree with your assessment of the situation.
• The two scientists disagree about the cause of climate change.
• My parents often disagree on political issues.
• We can disagree without being disagreeable.
• The committee members disagreed over the budget proposal.
• Spicy food disagrees with me and gives me heartburn.
• The humid weather seems to disagree with her allergies.