One question I often field in my capacity as OUP’s editor for American dictionaries is, “What’s the longest word in the dictionary?” I don’t hear it as often as “How do I get a new word in the dictionary?” but it still comes up from time to time. My stock answer isn’t very interesting: “It depends on what counts as a ‘word,’ and it depends on the dictionary.” That answer doesn’t satisfy most people, since the follow-up question is typically something like, “No, really, is it antidisestablishmentarianism or supercalifragilisticexpialidocious?” Those two specimens are the “usual suspects” that get hauled out in discussions of the longest word in English, perhaps because most of us have been familiar with them since grade school. But there are many other worthy candidates for the “longest word” mantle.