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

There's no definitive answer to the question of the "longest word in English" as it depends on what you consider a "word." Here are 3 contenders, along with their meanings:

1. Pneumonoultramicroscopicsilicovolcanoconiosis: This 45-letter behemoth describes a lung disease caused by inhaling very fine silica dust.

2. Floccinaucinihilipilification: This 29-letter word describes the act of estimating something as worthless.

3. Antidisestablishmentarianism: This 28-letter word refers to opposition to the separation of church and state.

These are all examples of very long words, but they are considered somewhat artificial and rarely used in everyday language.

It's also important to note that:

* Technical terms: Many specialized fields, like chemistry or biology, have incredibly long, technical words that are not typically considered "everyday" English words.

* Proper nouns: Words like "Incomprehensibilities" or "Antidisestablishmentarianism" are not considered "real" words by some, as they are essentially just very long combinations of letters that represent a concept.

The concept of the "longest word" is a bit of a linguistic puzzle!