Radeaa or Radeau: How To spell?

The word Radeaa is misspelled against Radeau, a noun meaning "A float; a raft."

Word ends with consecutive vowels 'AU' preceded by alphabets 'rade' is misspelled as 'AA'
Wrong Spelling:  rade-aa 
Correct Spelling:  rade-au 
Explore spell check of Radeau to spell without errors.

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