Use this domain for words that begin a clause that identifies a specific case or example of what has just been said, or that explains what has just been said. Specific case: I have just mentioned a general class of things or a general idea and want to give a specific example of what I am talking about. Explanation: I have just said something and I think people might misunderstand, so I want to explain what I mean. Digression: I am talking about a particular topic, but want to say something that does not fit into my topic, so I say something that is about a different topic.