Exhaoster or Exhauster: How To spell?

The word Exhaoster is misspelled against Exhauster, a noun meaning "One who, or that which, exhausts or draws out."

Word contains consecutive vowels 'AU' in between alphabets exh & ster is misspelled as 'AO'
Wrong Spelling:  exh-ao-ster 
Correct Spelling:  exh-au-ster 
Find more incorrect spellings of Exhauster to spell right way.

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