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  1. Longest word in English - Wikipedia

    The longest officially recognized place name in an English-speaking country is Taumata­whakatangihanga­koauau­o­tamatea­turi­pukaka­piki­maunga­horo­nuku­pokai­whenua­ki­tana­tahu …

  2. 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 …

  3. 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

  4. 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.

  5. 515-mile-long lightning bolt that spanned 5 states is the longest

    Jul 31, 2025 · A lightning "megaflash" that zipped across five U.S. states has set a new record for the longest ever detected.

  6. Longest - Definition, Meaning & Synonyms | Vocabulary.com

    2 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.

  7. 16 Longest Things Ever Measured - go2tutors.com

    Aug 11, 2025 · Here are 16 of the longest things ever officially measured. As of 2016, the Gotthard Base Tunnel is the longest railway tunnel in the world. This engineering marvel stretches 35.4 …

  8. 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.

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

    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.

  10. Longest - definition of longest by The Free Dictionary

    Define longest. longest synonyms, longest pronunciation, longest translation, English dictionary definition of longest. adj. long·er , long·est 1. a. Extending or traveling a relatively great …