Hadwork or Headwork: How To spell?

The word Hadwork is misspelled against Headwork, a noun meaning "Mental labor."

Headwork has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets h & dwork is misspelled as 'A'
Wrong Spelling:  h-a-dwork 
Correct Spelling:  h-ea-dwork 
Find more incorrect spellings of Headwork to spell right way.

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