The identity of the longest word in English depends on the definition of "word" and of length.
Parastratiosphecomyia stratiosphecomyioides
The sign at Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu
The station sign at Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch in North Wales
Honorificabilitudinitatibus is the dative and ablative plural of the medieval Latin word honōrificābilitūdinitās, which can be translated as "the state of being able to achieve honours". It is mention
Longest word in English
…The political position of opposing disestablishment Longest non-contrived and nontechnical word Not all dictionaries accept it due to lack of usage. honorificabilitudinitatibus 27 The state of being able to achieve honors Longest word in Shakespeare's works; longest word in the English language featuring alternating consonants…
An entry in Desiderius Erasmus's compendium Adagia, a possible source for Shakespeare