The word Gaging is misspelled against Gauging, which is present continuous of "Gauge"
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Word contains consecutive vowels 'AU' in between alphabets g & ging is misspelled as 'A' as letter 'U' is phonetically ignored
Wrong Spelling:  g-a-ging 
Correct Spelling:  g-au-ging 
Find more wrongly spelled words of Gauging to spell it well.