Warning: If you suffer from hippopotomonstrosesquipedaliophobia, which refers to a fear of long words, leave this page immediately.
Longest word has 189,819 letters
The longest English word spans about fifty-seven pages, according to Grammarly.com. It’s the chemical name for the titin protein found in humans. Its full name has 189,819 letters. Would you like to hear it pronounced? Pop some popcorn before you get started!
It will take over three hours to watch — it’s just slightly shorter than the film Gone with the Wind. Dictionaries omit the name of this protein and many other long words. Obviously, dictionaries have space constraints, and the average person would have no need to know the technical names of chemicals.
Other long words and their meanings
Pneumonoultramicroscopicsilicovolcanoconiosis — A lung disease that is otherwise known as silicosis. It is the longest word in a major dictionary.
Hippopotomonstrosesquipedaliophobia — A fear of long words.
Supercalifragilisticexpialidocious — UFamous for being created for the Mary Poppins film and musical.
Floccinaucinihilipilification — The act or habit of describing or regarding something as unimportant, of having no value or being worthless.
Antidisestablishmentarianism — O