Caterwawl or Caterwaul: How To spell?

The word Caterwawl is misspelled against Caterwaul, a noun meaning "A caterwauling."

Word contains consecutive vowels 'AU' in between alphabets caterw & l is misspelled as 'AW'
Wrong Spelling:  caterw-aw-l 
Correct Spelling:  caterw-au-l 
Explore spell check of Caterwaul to spell without errors.

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