The word Thratening is misspelled against Threatening, an adjective meaning "from Threaten, v."
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Threatening has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets thr & tening is misspelled as 'A'
Wrong Spelling:  thr-a-tening 
Correct Spelling:  thr-ea-tening 
Find more wrongly spelled words of Threatening to spell it well.