2.
Pneumonoultramicroscopicsilicovolcanoconiosis
3.
Antidisestablishmentarianism
4.
Supercalifragilisticexpialidocious
8.
Hippopotomonstrosesquippedaliophobia
9.
Pseudopseudohypoparathyroidism
10.
Floccinaucinihilipilification
11.
Hexakosioihexekontahexaphobia
12.
Honorificabilitudinitatibus