The word "conchie" is a slang term that refers to a person who opposes war or refuses to participate in military service due to their beliefs. However, there are several synonyms for this term that can be used to describe individuals who hold non-violent beliefs. Some common synonyms include conscientious objector, pacifist, peace advocate, nonviolent protester, and anti-war activist. These terms all convey the idea of someone who stands against war and violence, but may approach their opposition and activism in different ways. Whether using "conchie" or one of its synonyms, it is important to respect the beliefs and values of those who choose to promote peace in their own unique way.