who know's the longest word in the world?

Question

i wonder if it contains the whole alphabet.
well what i think the longest world is suprakagafrogilisticepliadouche.
Not sure if i spelled it right lolz.

Answer 1

I think this is the longest word in the world

The longest place-name still in use is

Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu, a New Zealand hill.

Answer 2

it is smiles there is a mile between the s's

Answer 3

slightyears