Question: What is the longest English word? Answer : The longest word in any English-language dictionary is pneumonoultramicroscopicsilicovolcanoconiosis, which is a lung disease caused by breathing in certain particles of dust. Try saying that five times fast! A lot of people think that the word supercalifragilisticexpialidocious from the movie Mary Poppins is the longest word, but it isn't. It's just one of the funnest words to say. I found this out on a great site called A Collection of Word Oddities and Trivia, which has all kinds of fun facts about words. For instance, there is a town in New Zealand called Taumatawhakatangihangakoauauotamateaturipukapapikimaunga- horonukupokaiwhenuakitanatahu. But the locals call it Taumata for short.
