The word Sweethaurt is misspelled against Sweetheart, a noun meaning "A lover of mistress."
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Sweetheart has vowels 'ea' together mispronounced as 'au'
Word contains consecutive vowels 'EA' in between alphabets sweeth & rt is misspelled as 'AU'
Wrong Spelling:  sweeth-au-rt 
Correct Spelling:  sweeth-ea-rt 
Check more misspelled words of Sweetheart to spell it correct.