Thesaori or Thesauri: How To spell?

The word Thesaori is misspelled against Thesauri, which is plural of "Thesaurus"

Word contains consecutive vowels 'AU' in between alphabets thes & ri is misspelled as 'AO'
Wrong Spelling:  thes-ao-ri 
Correct Spelling:  thes-au-ri 
Find more incorrect spellings of Thesauri to spell right way.

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