Smothing or Smoothing: How To spell?
The word Smothing is misspelled against Smoothing, an adjective meaning "fr. Smooth, v."
Smoothing has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings sm & thing which should not be misspelled with single 'O'
Wrong Spelling:  sm-o-thing  Correct Spelling:  sm-oo-thing 
Find more incorrect spellings of Smoothing to spell right way.