The word Slipered is misspelled against Slippered, an adjective meaning "Wearing slippers."
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Slippered has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings sli & ered which should not be misspelled with single 'P'
Wrong Spelling:  sli-p-ered 
Correct Spelling:  sli-pp-ered 
Find more wrongly spelled words of Slippered to spell it well.