agree on, agree to, agree with Agree on means to share the same opinion about items, topics or standards: All parties agreed on plans to expand the Rideau Centre. Agree to means to commit to (a course of action, a proposal, etc.): Ontario’s ruling Conservatives and opposition Liberals agreed to adopt new rules that allow the NDP to qualify for official party status. The manager agreed to the recommendation submitted by the working group. Agree with means to have the same opinion as another person or to approve of something. I agree with you that spaghetti sauce can never have too much garlic. I agreed with the approach Mike adopted. In addition, facts may agree with (correspond to) each other. Your data do not agree with our results.