The Longest Long Words List - Merriam-Webster
Sep 2, 2025 · The longest word entered in most standard English dictionaries is Pneumonoultramicroscopicsilicovolcanoconiosis with 45 letters. Our definition is "a lung disease …
What Is the Longest Word In English? Here’s a List of 15 Lengthy Words
Apr 11, 2023 · At over 180,000 letters long, the chemical name of the protein titin is often said to technically be the longest English word. If spoken out loud, this word takes over three hours to say!
19 longest words in English with up to over 45 letters
Aug 19, 2025 · Prepare to challenge your memory and discover the jaw-dropping lengths of the longest words in English.
These Are the LONGEST English Words in the Dictionary
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. Luckily, this protein has …
13 of the Longest Words in the English Language - ThoughtCo
May 11, 2025 · Take your vocabulary to the next level with this list, featuring 13 of the longest words in the English language.
Longest - Definition, Meaning & Synonyms | Vocabulary.com
Dec 19, 2025 · Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.
The Longest Word In The World: Which One Holds The Record?
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.
20 Longest Words in English (With Meanings, Pronunciation) - Parade
Jun 22, 2024 · What's the longest word in English? We have the longest single word and a list of 20 English words with the most letters. Plus, what they mean and how to say them.
150 Longest Long Words in English (+ Definitions) - Writing Beginner
This is the ultimate list of the 150 longest long words in the English language.
What is the world's longest place name and where is it located
2 days ago · The longest place name in the global geography serves as a pointer that geography, as a discipline, is as much a function of human expression as by physical terrain.