First, we know that there is a register of English that we label standard. We know that it is the prestige dialect, that the written form has to be taught, and that it is the indispensable form of English for business, law, the professions, and so on. We identify marks of vocabulary and syntax associated with that register. And we observe that speakers and writers freely adopt elements of other registers—the informal, the colloquial, slang—for occasional effect.But, as I have written previously, standard English is not a Thing Out There, separate from those of us who use it. And it is certainly not just One Thing.