Longest word candidates may be judged by their acceptance in major dictionaries such as the Oxford English Dictionary or in record-keeping publications like Guinness World Records, and …

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

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 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.

Aug 19, 2025 · Prepare to challenge your memory and discover the jaw-dropping lengths of the longest words in English.

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

Nov 10, 2025 · From the longest word in English to giant German compounds, discover the longest words in the world and why they’re so fascinating.

Jul 6, 2025 · Discover the longest words in the world across various languages, from English to Sanskrit, and learn how they are formed. Explore fascinating linguistic curiosities!

5 days ago · Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.

Aug 11, 2025 · Uncover the truth behind the longest word in the English language, a massive 189,819-letter chemical name. Learn what it means, why it's so long, and whether it's truly …