The word Caser is misspelled against Causer, a noun meaning "One who or that which causes."
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Word contains consecutive vowels 'AU' in between alphabets c & ser is misspelled as 'A' as letter 'U' is phonetically ignored
Wrong Spelling:  c-a-ser 
Correct Spelling:  c-au-ser 
Explore spell check of Causer to spell without errors.