The word Disrof is misspelled against Disroof, a verb meaning "To unroof."
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Disroof has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings disr & f which should not be misspelled with single 'O'
Wrong Spelling:  disr-o-f 
Correct Spelling:  disr-oo-f 
Find more incorrect spellings of Disroof to spell right way.