Backdor or Backdoor: How To spell?
The word Backdor is misspelled against Backdoor, an adjective meaning "Acting from behind and in concealment; as, backdoor intrigues."
Backdoor has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings backd & r which should not be misspelled with single 'O'
Wrong Spelling:  backd-o-r  Correct Spelling:  backd-oo-r 
Find more incorrect spellings of Backdoor to spell right way.