The word Streoghten is misspelled against Straighten, a verb meaning "A variant of Straiten."
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Word contains consecutive vowels 'AI' in between alphabets str & ghten is misspelled as 'EO'
Wrong Spelling:  str-eo-ghten 
Correct Spelling:  str-ai-ghten 
Find more incorrect spellings of Straighten to spell right way.