The word Duden is misspelled against Dudeen, a noun meaning "A short tobacco pipe."
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Dudeen has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Dud & n which should not be misspelled with single 'E'
Wrong Spelling:  Dud-e-n 
Correct Spelling:  Dud-ee-n 
Check more misspelled words of Dudeen to spell it correct.