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What is the longest word in the Oxford English Dictionary?

The longest word in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, a word that refers to a lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis.

In this manner, what are the 10 longest words in the English language?

10 Longest Words in the English Language

  • Pneumonoultramicroscopicsilicovolcanoconiosis (45 letters)
  • Hippopotomonstrosesquippedaliophobia (36 letters)
  • Supercalifragilisticexpialidocious (34 letters)
  • Pseudopseudohypoparathyroidism (30 letters)
  • Floccinaucinihilipilification (29 letters)
  • Antidisestablishmentarianism (28 letters)

Additionally, what is the longest word in the English dictionary 2019? The longest words in the dictionary are:

  • antidisestablishmentarianism - opposition to the disestablishment of the Church of England - 28 letters.
  • floccinaucinihilipilification - the estimation of something as worthless - 29 letters.
  • pneumonoultramicroscopicsilicovolcanoconiosis - a supposed lung disease - 45 letters.

Keeping this in view, what is the second longest word in the dictionary?

pneumonoultramicroscopicsilicovolcanoconiosis

Is Supercalifragilisticexpialidocious a real word in the dictionary?

It's a nonsense word made famous from a song of the same name in the 1964 Mary Poppins film. It has an entry in the Oxford English Dictionary: A nonsense word, originally used esp. by children, and typically expressing excited approbation: fantastic, fabulous.

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