I work under contract at a public university. My only responsibilities are teaching courses, I needn't conduct any research and I'm not a student at that school. I'm not on any tenure track. When preparing some document (e.g. my syllab, C.V.), I'm not sure how to list my position. I found some official school documents that list me as a "teaching assistant", but that might be a mistake, as I've never been asked to assist anyone and my work is entirely independent. I thought "Instructor" was just a general-use term, but slightly more appropriate word for "teacher", but the dictionary seems to have a very specific meaning: "A college or university teacher who ranks below an assistant professor". I don't know how this ranking system works and I don't want to use a title inappropriately. What should I use? I'm fine to use "teaching assistant" or whatever is indeed appropriate.