Unfortunately, I can't give a good definition for this except by example. Christianity, Judaism, Islam, Buddhism, Daoism, Hinduism, Atheism. I suppose that it might even be possible to ask the questions assuming that science is a religion. The focus of the questions is intended to be on the engineering and social aspects, rather than on a question like "Should Atheism be considered a religion?" I understand that the vagueness makes this a less than perfect delineation of a topic.