Trater or Treater: How To spell?

The word Trater is misspelled against Treater, a noun meaning "One who treats; one who handles, or discourses on, a subject; also, one who entertains."

Treater has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets tr & ter is misspelled as 'A'
Wrong Spelling:  tr-a-ter 
Correct Spelling:  tr-ea-ter 
Explore spell check of Treater to spell without errors.

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