The Joy of Dutch

If the first element of the compound ends in a tricky cluster and the second element also starts with another, you might get a monster like slechtstschrijvend, with nine consecutive consonants, representing seven consonant sounds. Admittedly, this is the kind of barely-a-word mostly used to flummox foreigners (it means "the worst writing"). But as such, it is best-in-class. 

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