The word Difuser is misspelled against Diffuser, a noun meaning "One who, or that which, diffuses."
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Diffuser has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Di & user which should not be misspelled with single 'F'
Wrong Spelling: Di-f-user
Correct Spelling: Di-ff-user
Check more misspelled words of Diffuser to spell it correct.