Attun or Attain: How To spell?

The word Attun is misspelled against Attain, a noun meaning "Attainment."

Word contains consecutive vowels 'AI' in between alphabets att & n is misspelled as 'U'
Wrong Spelling:  att-u-n 
Correct Spelling:  att-ai-n 
Check more misspelled words of Attain to spell it correct.

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