Apension or Appension: How To spell?
The word Apension is misspelled against Appension, a noun meaning "The act of appending."
Appension has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings a & ension which should not be misspelled with single 'P'
Wrong Spelling:  a-p-ension  Correct Spelling:  a-pp-ension 
Find more incorrect spellings of Appension to spell right way.