Caasal or Causal: How To spell?

The word Caasal is misspelled against Causal, meaning "Indicating or expressing a cause."

Word contains consecutive vowels 'AU' in between alphabets c & sal is misspelled as 'AA'
Wrong Spelling:  c-aa-sal 
Correct Spelling:  c-au-sal 
Browse incorrect spellings of Causal to spell it good.

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