The word "impossible" dropped in use by 50% over the course of the 20th century
5
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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Anuptaphobia is the fear of staying single.
11
Stressed is Desserts spelled backwards.
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Floccinaucinihilipilification, the declaration of an item being useless, is the longest non-medical term in the English language.
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