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Do you know which is the longest word in the English dictionary?

Actually it is quite difficult to decide according to the different branches you consider. However, we can say that officially the longest word is a 29 characters word: floccinaucinihiliplification. This means “ the act of estimating worthless”.

Then, there’s antidisestablishmentarianism with its 28 letters, meaning “opposition to the disestablishment of the Church of England. It is often considered the longest word as it has an actual meaning instead of being created just to be long.

Unofficially the longest word is ‘pneumonoultramicroscopicsilicovolcanoconiosis’ at 45 characters, meaning ‘a lung disease’. It was created solely for the purpose of being the longest word, however, it does appear in a few dictionaries.