Bipenis or Bipennis: How To spell?

The word Bipenis is misspelled against Bipennis, a noun meaning "An ax with an edge or blade on each side of the handle."

Bipennis has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings bipe & is which should not be misspelled with single 'N'
Wrong Spelling: bipe-n-is
Correct Spelling: bipe-nn-is
Find more wrongly spelled words of Bipennis to spell it well.