The word Whizing is misspelled against Whizzing, which is present continuous of "Whiz"
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Whizzing has double "zz" is mispronounced as "z"
Remember double 'ZZ' in between the strings whi & ing which should not be misspelled with single 'Z'
Wrong Spelling: whi-z-ing
Correct Spelling: whi-zz-ing
Find more wrongly spelled words of Whizzing to spell it well.