The Longest English Word? - 12 Oversized Words | Merriam-Webster
www.merriam-webster.com › the-longest-english-wordAug 09, 2021 · Weighing in at a hefty 19 syllables and 45 letters, pneumonoultramicroscopicsilicovolcanoconiosis is often referred to as the longest word in the English language, on the basis that it is the longest word found in the largest dictionary (the 20-volume Second Edition of the Oxford English Dictionary). It is often referred to as an 'invented word,' which may be a bit confusing, since all words had to have been invented at some point of other.