Streoghtener or Straightener: How To spell?

The word Streoghtener is misspelled against Straightener, a noun meaning "One who, or that which, straightens."

Word contains consecutive vowels 'AI' in between alphabets str & ghtener is misspelled as 'EO'
Wrong Spelling:  str-eo-ghtener 
Correct Spelling:  str-ai-ghtener 
Find more incorrect spellings of Straightener to spell right way.

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