Sero or Serai: How To spell?

The word Sero is misspelled against Serai, a noun meaning "A palace; a seraglio; also, in the East, a place for the accommodation of travelers; a caravansary, or rest house."

Word ends with consecutive vowels 'AI' preceded by alphabets 'ser' is misspelled as 'O'
Wrong Spelling:  ser-o 
Correct Spelling:  ser-ai 
Find more incorrect spellings of Serai to spell right way.

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