Longest word in English - Wikipedia
The longest officially recognized place name in an English-speaking country is Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu …
The Longest English Word (189,819 Letters): Facts and Explanation
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 …
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 …
The Longest Word in the Dictionary | Britannica Dictionary
Pneumonoultramicroscopicsilicovolcanoconiosis is the longest word entered in the most trusted English dictionaries. The definition is "a lung disease
Discover What Is the Longest Word in the World - Rosetta Stone
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.
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. …
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.