The word Pufer is misspelled against Puffer, a noun meaning "A kier."
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Puffer has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Pu & er which should not be misspelled with single 'F'
Wrong Spelling:  Pu-f-er 
Correct Spelling:  Pu-ff-er 
Check more misspelled words of Puffer to spell it correct.