Disagree (verb)

1. Have a different opinion from someone else.
2. Not concur with someone else's opinion or proposal.
3. Refuse to accept or comply with something.
4. Not be in harmony or accord with something.
5. Differ in opinion or belief.

Origin:

Early 16th century (in the sense "differ in opinion"): from dis- "apart, away" + agree.

Examples:

1. I disagree with your opinion on the matter.
2. He disagreed with the decision of the committee.
3. She disagreed with the proposal and voted against it.
4. They disagreed on the best course of action.
5. I disagree that this is the right way to handle the situation.