The initial 18th-, 19th-century intention was to give the less-educated lower classes a way to move up into this new, rising middle class, to enable them to fit in. So our view of language as being class-based is an unintended consequence of the drive to help educate rising businessmen.

Back in the 19th century, our marketing folks decided to play up the refined usage angle because prescriptivism was very popular: our dictionary is where you go to learn anything about anything. That really set the tone in North America for how people responded to dictionaries.

You will hear people say the C-word. Except, it's a regional language: in British English, c - t has much less of an inflammatory sense than it does in North American English. You can hear someone on British TV called "a c - ting monkey" or a man being called a c - t. The particular fascination of profanity is how culturally specific it is and how it evolves.

I make the case in the book that Standard English, that language we all aspire to live and move and have our being within, is actually based on a fiction. It's not anyone's native way of speaking or writing. That's why we have to take classes in it. Language is just really squishy.

Most people, if they think at all about the dictionary, think of it as this fixed object given to us from on high. It is the thing that legitimizes language and makes language real. You never think that it's actually compiled by living, breathing nerds like me. When you realize that it's compiled by people, it becomes a different thing, a different kind of document.

There's a measure of prescriptivism and descriptivism in every dictionary. Prescriptivism believes that the language should mirror the best practices of English, and editors are prescriptivist in so far as they don't want to let things they consider to be inelegant or ungrammatical into print.

We want to emulate the educated class, even if we don't think of educated people as a class these days.