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Note 273 – What’s the longest word in the English Language?

English: The sign at en:Llanfairpwllgwyngyllgo...

Image via Wikipedia

If someone asked me to think of a long word, I’d probably say supercalifragilisticexpialidocious; however, I’ve only heard it used in a song in the Mary Poppins film so I don’t know if that counts.  I think it’s about time I learnt another one.  Time for some research…

Wikipedia say that the longest word in most English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, which I haven’t attempted to pronounce just in case it brings on one of my headaches.  The definition of this 45 letter word is “lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis (possibly not a word I’ll use every day!).

Other words Wikipedia mention are:

  1. Pseudopseudohypoparathyroidism (30 letters) – an inherited disorder (Oxford English Dictionary)
  2. Flocci­nauci­nihili­pili­fication (29 letters) – longest non-technical word found in major dictionaries (as far back as 1741) meaning “consisting of a series of Latin words meaning ‘nothing’ and defined as ‘the act of estimating something as worthless'”.

Robin Bloor in his blog 10 Very Long Words You Don’t Know (site: Word You Don’t, lists number 2 above, but also has a 28 letter word antidisestablishmentarianism.  He explains that British politicians were called disestablishmentarians when they didn’t agree with Henry VIII setting himself up as the Pope of the Church (after not being allowed a divorce).  Other politicians who opposed of this were called antidisestablishmentarians.

The coolest one Robin Bloor has written about is Hippopotomonstrosesquippediliophobia (all 36 letters of it!) and if you happen to be a hippopotomonstro…blah blah blah, then you have a fear of long words!  Who came up with that?

I’ll end with the word in the image above – Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch which is a ’58 letter’ station sign in Wales (United Kingdom).  I have a feeling it gets shortened to Llanfairpwll – otherwise the station announcements might take a while!

Please leave me a comment if you know of any other interesting long words.

Until tomorrow

Freelance Writer and author of My OpenLeaf Journey
For other examples of my work please visit

Image attribution: Via Wikipedia Commons


About Sandra Madeira

I am a full-time working mum with a passion for writing and inspiring others. Subjects I tend to blog about are life skills, parenting, decluttering, worklife balance, etc. At the moment I am on a decluttering mission creating space in my house, garden and mind. I have challenged myself to do at least ten minutes a day and write about it. Have a good day! Sandra Freelance Writer



  1. Pingback: Note 300 – Most popular posts since My Writing Challenge began « My writing challenge - February 24, 2012

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