Siflement or Sifflement: How To spell?

The word Siflement is misspelled against Sifflement, a noun meaning "The act of whistling or hissing; a whistling sound; sibilation."

Sifflement has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Si & lement which should not be misspelled with single 'F'
Wrong Spelling:  Si-f-lement 
Correct Spelling:  Si-ff-lement 
Find more wrongly spelled words of Sifflement to spell it well.

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