What makes a word a word? If something’s not in the dictionary, you might not be able to use it in Scrabble. But dictionaries aren’t the last word on whether a word is legitimate. If you use a word that someone else understands, then it’s a word. So when Johnny from East Hampton, New York, called to ask if his made-up term micronutia, meaning “something even smaller than minutia,” was a real word, he was happy with our answer. This is part of a complete episode.