1.Pneumonoultramicroscopicsilicovolcanoconios
is (forty-five letters) is lung disease caused by the inhalation of silica or quartz dust.
2.Pseudopseudohypoparathyroidism (thirty letters) is a mild form of inherited pseudohypoparathyroidism that simulates the symptoms of the disorder but isn’t associated with abnormal levels of calcium and phosphorus in the blood.
3.Floccinaucinihilipilification (twenty-nine letters) is the estimation of something as valueless. Ironically, floccinaucinihilipilification is a pretty valueless word itself; it’s almost never used except as an example of a long word.
4.Antidisestablishmentarianism (twenty-eight letters) originally described opposition to the disestablishment of the Church of England, but now it may refer to any opposition to withdrawing government support of a particular church or religion.
yan lng po alam ko
hope it helps ^^
