Batardeao or Batardeau: How To spell?

The word Batardeao is misspelled against Batardeau, a noun meaning "A cofferdam."

Word ends with consecutive vowels 'AU' preceded by alphabets 'batarde' is misspelled as 'AO'
Wrong Spelling:  batarde-ao 
Correct Spelling:  batarde-au 
Find more incorrect spellings of Batardeau to spell right way.

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