Stifen or Stiffen: How To spell?

The word Stifen is misspelled against Stiffen, a verb meaning "To become stiff or stiffer, in any sense of the adjective."

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