A proper noun is just a specific noun and starts with a capital letter. Some suggestions: Honda Civic. McDonald's. (Your name). Texas. Grand Theft Auto. The Hunger Games. (Your teacher). Time Magazine. Red. Despicable Me. I hope this helps :)
Debate are formal discussions on particular subjects, such as those as on conflict. Conflict often leads to arguments and disagreements, etc.
So in other words, debate, like discussing on how to do things, can solve conflict and male things easier.