longest word with shortest definition
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.
The longest non-technical word in major dictionaries is flocciÂ­nauciÂ­nihiliÂ­piliÂ­fication at 29 letters. Consisting of a series of Latin words meaning nothing and defined as the act of estimating something as worthless; its usage has been recorded as far back as 1741.