Teracing or Terracing: How To spell?
The word Teracing is misspelled against Terracing, which is present continuous of "Terrace"
Terracing has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings te & acing which should not be misspelled with single 'R'
Wrong Spelling:  te-r-acing  Correct Spelling:  te-rr-acing 
Find more wrongly spelled words of Terracing to spell it well.