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