Topaw or Topau: How To spell?

The word Topaw is misspelled against Topau, a noun meaning "The rhinocerous bird (a)."

Word ends with consecutive vowels 'AU' preceded by alphabets 'top' is misspelled as 'AW'
Wrong Spelling:  top-aw 
Correct Spelling:  top-au 
Find more incorrect spellings of Topau to spell right way.

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