The word Arreir is misspelled against Arrear, meaning "Something overdue and unpaid."
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Arrear has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets arr & r is misspelled as 'EI'
Wrong Spelling:  arr-ei-r 
Correct Spelling:  arr-ea-r 
Find more wrongly spelled words of Arrear to spell it well.