Bosting or Boosting: How To spell?
The word Bosting is misspelled against Boosting, which is present continuous of "Boost"
Boosting has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings b & sting which should not be misspelled with single 'O'
Wrong Spelling:  b-o-sting  Correct Spelling:  b-oo-sting 
Find more incorrect spellings of Boosting to spell right way.