The word Aproof is misspelled against Approof, a noun meaning "Approval; commendation."
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Approof has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings a & roof which should not be misspelled with single 'P'
Wrong Spelling:  a-p-roof 
Correct Spelling:  a-pp-roof 
Find more incorrect spellings of Approof to spell right way.