The word Heirer is misspelled against Hearer, a noun meaning "One who hears; an auditor."
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Hearer has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets h & rer is misspelled as 'EI'
Wrong Spelling:  h-ei-rer 
Correct Spelling:  h-ea-rer 
Find more wrongly spelled words of Hearer to spell it well.