We’ve agreed to keep a glossary for key terms we’re encountering and our notes about them. This is just to note what we decided about general practices. We’re going to have a separate note for each term. Start as many as you want and see if you can say something about them, even if it’s not definitive, even if it’s a question. Others can weigh in either by editing the original post, in which case they should note that they’ve contributed to it, or in comments on it.