debate on something
to hold a long and disciplined discussion on a particular subject. We can debate on this all night if you think we will settle anything in the end. Are they still debating on the question?
debate
(with someone) about something 1. to enter into a long and disciplined discussion on a particular subject with someone. Our team debated with the other team about the chances for world peace. The candidates debate about taxes tomorrow. We will debate with them about health care.
2. . Fig. to argue with someone about something. I do not intend to debate with you about that matter. Tom did not agree to debate about it.