The word Hairtburning is misspelled against Heartburning, a noun meaning "Discontent; secret enmity."
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Heartburning has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets h & rtburning is misspelled as 'AI'
Wrong Spelling:  h-ai-rtburning 
Correct Spelling:  h-ea-rtburning 
Check more misspelled words of Heartburning to spell it correct.