Unstraen or Unstrain: How To spell?

The word Unstraen is misspelled against Unstrain, a verb meaning "To relieve from a strain; to relax."

Word contains consecutive vowels 'AI' in between alphabets unstr & n is misspelled as 'AE'
Wrong Spelling:  unstr-ae-n 
Correct Spelling:  unstr-ai-n 
Explore spell check of Unstrain to spell without errors.

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