Plateaa or Plateau: How To spell?

The word Plateaa is misspelled against Plateau, a noun meaning "A flat surface; especially, a broad, level, elevated area of land; a table-land."

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

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