Gager or Gauger: How To spell?

The word Gager is misspelled against Gauger, a noun meaning "One who gauges; an officer whose business it is to ascertain the contents of casks."

Word contains consecutive vowels 'AU' in between alphabets g & ger is misspelled as 'A' as letter 'U' is phonetically ignored
Wrong Spelling:  g-a-ger 
Correct Spelling:  g-au-ger 
Explore spell check of Gauger to spell without errors.

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