The longest word in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, a 45-letter word which refers to a lung disease
Assemblywomen (Ecclesiazousae), the ancient Greek comedic playwright Aristophanes created a word of 183 letters which describes a dish by stringing together its ingredients.
Lopadotemakhoselakhogameokranioleipsanodrimypotrimmatosilphiokarabomelitokatakekhymenokikhlepikossyphophattoperister-alektryonoptokephalliokigklopeleiolagÅiosiraiobaphÄ“traganopterýgÅn,
As the largest known protein, titin also has the longest IUPAC name. The full chemical name, containing 189,819 letters, is sometimes stated to be the longest word in the English language
Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu 85 Longest officially recognized place name