People will debate this issue, but according to the Oxford English Dictionary, the longest word in the English language is pneumonoultramicroscopicsilicovolcanoconiosis . It’s a 45-letter medical term referring to a lung disease caused by silica dust. I know, I say this word all the time too.
Perhaps medical terminology is not fair, and we shouldn't count that. Then the longest word becomes floccinaucinihilipilification. This everyday, 29-letter word means...GUESS! I'll post the answer later this week.
What does FLOCCINAUCINIHILIPILIFICATION mean?