What is another word for Mooter?
Pronunciation: [mˈuːtə] (IPA) 
The word "mooter" is relatively obscure and rarely used. As such, there are not many direct synonyms available, but some options include debater, arguer, and disputant. Other related terms might include advocate, champion, or defender, although these words don't necessarily carry the same connotation of someone engaging in a contentious discussion or argument. Depending on the context, terms like participant, speaker, or presenter might also be appropriate. Ultimately, the most fitting synonym will depend on the specific situation and meaning conveyed by the word "mooter".
