The word Sader is misspelled against Sadder, a noun meaning "Same as Sadda."
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Sadder has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Sa & er which should not be misspelled with single 'D'
Wrong Spelling:  Sa-d-er 
Correct Spelling:  Sa-dd-er 
Explore spell check of Sadder to spell without errors.