oratorical — of, relating to, or characteristic of an orator or oratory: His oratorical prowess has led to political success.
noun debating
oratory — skill or eloquence in public speaking: The evangelist moved thousands to repentance with his oratory.
discussion — an act or instance of discussing; consideration or examination by argument, comment, etc., especially to explore solutions; informal debate.
rhetoric — (in writing or speech) the undue use of exaggeration or display; bombast.
declamation — a rhetorical or emotional speech, made esp in order to protest or condemn; tirade
