Question

what is the londest word in dictionary???

Answer 1

The longest word in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, a word that refers to a lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis.

Answer 2

I read it somewhere... this is the longest word:
Pneumonoultramicroscopicsilicovolcanoconiosis
If some other word has been discovered which surpassed it, then I have no idea. Hope it helped!!