What is the longest word in the dictionary as of this moment?

Answer 1

I've heard this 45-letter word is in Merriam-Webster:

pneumonoultramicroscopic-
silicovolcanoconiosis

It's a lung disease found in miners. (Remove the dash; Answers would only let me type so many letters without a break.)

More often cited (though shorter) is the 28-letter antidisestablishmentarianism, which is the value of estimating as worthless.

Pick either one and impress your friends!

Answer 2

It might be supercalifragilisticexpialidocious (which appears in the Oxford English Dictionary), unless you want to count names of diseases (such as 'pneumonoultramicroscopicsilicovolcanoconiosis', defined by the OED as "a factitious word alleged to mean 'a lung disease caused by the inhalation of very fine silica dust' but occurring chiefly as an instance of a very long word"), places (such as 'Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch', a village in Wales), chemical compounds (apparently there is one that is 1,913 letters long), and also a few words found only in Joyce's Finnegans Wake.

Other words famous for being sesquipedalian:

antidisestablishmentarianism ("opposition to the disestablishment of the Church of England")
floccinaucinihilipilification
honorificabilitudinitatibus (Which appears in Shakespeare's Love's Labour's Lost, and which has been cited as [dubious] evidence that Francis Bacon wrote Shakespeare's plays)
Or perhaps smiles is the longest word — after all, there is a mile between the first letter and the last.

Answer 3

PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS
(also spelled PNEUMONOULTRAMICROSCOPICSILICOVOLCANO­KONIOSIS)
= a lung disease caused by breathing in particles of siliceous volcanic dust.
This is the longest word in any English dictionary. However, it was coined by Everett Smith, the President of The National Puzzlers' League, in 1935 purely for the purpose of inventing a new "longest word". The Oxford English Dictionary described the word as factitious. Nevertheless it also appears in the Webster's, Random House, and Chambers dictionaries.

Answer 4

The longest word in the standard english dictionary is
pneumonoultramicroscopicsilicovolcanoco it basically means a lung disiease aquired by inhaling silica

Answer 5

supercalifragilisticexpealido cious? It's not a word but it's such a famous song that it should be!

haha it was so long it automatically cut me off so I had to add that space!

Answer 6

Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch..
A village in Wales..
pneumonoultramicroscopicsilicovolcanoconiosis - a type of lung disease.
supercalifragilisticexpialidoc ious - c'mon..you know this one..

Answer 7

think is the one that means afraid of long words, it is a very long word but i forgot it. why don't you check?

Answer 8

pseudopseudohypoparathyroidism (30 letters).

Answer 9

antidisestablishmentarianism

Answer 10

antidisestablishmentarianism