Question

what is the mean of "hippopotomonstrosesquippedaliophobia"?

just don't report questions that actually have a mean :/​

Answer 1

Hippopotomonstrosesquippedaliophobia is one of the longest words in the dictionary — and, in an ironic twist, is the name for a fear of long words. Sesquipedalophobia is another term for the phobia. Instead, hippopotomonstrosesquippedaliophobia is considered a social phobia

Answer 2

hippopotomonstrosesquippedaliophobia is considered a social phobia