About 49,000,000 results
Open links in new tab
  1. Longest word in English - Wikipedia

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

  2. 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.

  3. 19 longest words in English with up to over 45 letters

    Aug 19, 2025 · Many of the longest words in the dictionary refer to medicine or chemistry. The nature of their work, or science in general, calls for it as it deals with very specific things. They …

  4. The 10 Longest Words in the English Language

    May 8, 2025 · Explore the intriguing realm of lengthy words in English. Uncover their origins, usage, and significance, from uncommon medical terms to extraordinary linguistic creations.

  5. The Longest English Word (189,819 Letters): Facts and Explanation

    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 …

  6. The 10 longest words in the world | The AltaLingua Blog

    The 12 Longest Words in the World: A Glimpse of Linguistic Wonders Human language is fascinating, and one of the most interesting features of words is their length. Across the world, …

  7. 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 …

  8. What Is the Longest Word in English? - Reader's Digest

    May 29, 2025 · The longest word in the Oxford English Dictionary is 45 letters: pneumonoultramicroscopicsilicovolcanoconiosis. According to the OED, this synonym for …

  9. 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 caused by inhalation of very fine silicate …

  10. List of Longest English Words in the World - Leverage Edu

    Sep 24, 2025 · It has 45 letters and is considered the longest word in major English dictionaries. It refers to a lung disease caused by inhaling very fine particles of silica dust, often found near …