The word Overheir is misspelled against Overhear, a verb meaning "To hear again."
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Overhear has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets overh & r is misspelled as 'EI'
Wrong Spelling:  overh-ei-r 
Correct Spelling:  overh-ea-r 
Find more wrongly spelled words of Overhear to spell it well.