> “What in the world does _words_used_as_words_ mean?” would be a valid way of formatting that question according to the guide: that's what they mean. I think

> “What in the world does _words_used_as_words_ mean?” would be a valid way of formatting that question according to the guide: that's what they mean. I think you are answering my question, but I still don't understand. How else than as words would words be used? Are you saying that the underlining here is serving the purpose of quotation marks?