I thought this could be a fun project to make, and it was! I hope you enjoy learning these very large words. They are quite fun to pronounce once you learn how! It takes some practice though. Comment if you know how to pronounce them yet. Thanks for viewing!
https://www.dictionary.com/ for definitions and pronunciations for 'pneumonoultramicroscopicsilicovolcanoconiosis' and 'antidisestablishmentarianism'. For Hippopotomonstrosesquippedaliophobia, I got information off Google.