Backstar or Backstair: How To spell?
The word Backstar is misspelled against Backstair, an adjective meaning "Private; indirect; secret; intriguing; -- as if finding access by the back stairs."
Word contains consecutive vowels 'AI' in between alphabets backst & r is misspelled as 'A'Wrong Spelling:  backst-a-r  Correct Spelling:  backst-ai-r 
Browse incorrect spellings of Backstair to spell it good.