Question: what are 5 longest words?
Answer: Floccinaucinihilipilification (29 letters) ...  Antidisestablishmentarianism (28 letters) ...  Honorificabilitudinitatibus (27 letters) ...  Thyroparathyroidectomized (25 letters) ...  Dichlorodifluoromethane (23 letters) ...  Incomprehensibilities (21 letters)