What are the 3 longest words in English and their meanings?

Answer 1

First you have 'floccinaucinihilipilification' at 29 characters, meaning 'the act of estimating as worthless'.

Then there's 'antidisestablishmentarianism' at 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.

Even longer still is 'Hippopotomonstrosesquippedaliophobia', at 36 characters, it is the fear of long words. They should have made it shorter.

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.

Answer 2

There's no way to clearly say which English word is the longest. The identity of the longest word in English depends upon the definition of what constitutes a word in the English language, as well as how length should be compared.

These words are the usual candidates:

1. Methionylthreonylthreonylglutaminylalanyl...isoleucine (189,819 letters) = Chemical name of titin, the largest known protein
   
2. Pneumonoultramicroscopicsilicovolcanoconiosis (45 letters) = a lung disease, but the word was only created specifically to be the longest word
   
3. Supercalifragilisticexpialidocious (34 letters) = good
   
4. Pseudopseudohypoparathyroidism (30 letters) = an inherited disorder, longest word that was not coined intentionally.

for more words, click here https://en.wikipedia.org/wiki/Longest_word_in_English

Answer 3

The three longest words in English are:

1. Pneumonoultramicroscopicsilicovolcanoconiosis - a lung disease caused by inhaling very fine silicate or quartz dust.
2. Pseudopseudohypoparathyroidism - a genetic disorder with similar symptoms to pseudohypoparathyroidism but with normal levels of calcium and phosphate.
3. Floccinaucinihilipilification - the act of deeming something as worthless or unimportant.