The word Witneser is misspelled against Witnesser, a noun meaning "One who witness."
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Witnesser has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings witne & er which should not be misspelled with single 'S'
Wrong Spelling:  witne-s-er 
Correct Spelling:  witne-ss-er 
Find more wrongly spelled words of Witnesser to spell it well.