The longest word in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis (45 letters), a word that refers to a lung disease …

Dec 4, 2025 · The top ten longest words in the world, from the medically complex to the whimsically absurd. Hopefully, you’ve learned something new and had a bit of fun along the way.

Sep 2, 2025 · The longest word entered in most standard English dictionaries is Pneumonoultramicroscopicsilicovolcanoconiosis with 45 letters. Our definition is "a lung disease …

May 29, 2025 · There are about a million words in the English language, but do you know the longest word in English? You may think it’s antidisestablishmentarianism, at 28 letters long. Or is it...

Aug 11, 2025 · The longest word in the English language is a chemical name for a protein called Titin. At 189,819 letters long, it is a scientific name, not a word you would ever use in conversation.

Oct 29, 2025 · The longest word in the English language is a 189,819-letter chemical name for the protein titin. While it's not exactly practical for everyday use, it's a fascinating example of the power …

Apr 21, 2025 · Find the answer to the question “What is the longest word in the world?” with our guide to long words around the globe, including the longest words in English.

Jul 6, 2025 · In the English language, Pneumonoultramicroscopicsilicovolcanoconiosis is often considered the longest word. This term, which refers to a lung disease caused by inhaling very fine …

Mar 24, 2025 · Definition: Yep, there’s a word out there that’s almost 190,000 letters long. Technically speaking, it’s not truly a word—it’s actually the chemical name for a protein.

May 11, 2025 · Take your vocabulary to the next level with this list, featuring 13 of the longest words in the English language.