Trespaser or Trespasser: How To spell?
The word Trespaser is misspelled against Trespasser, a noun meaning "A transgressor of the moral law; an offender; a sinner."
Trespasser has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings trespa & er which should not be misspelled with single 'S'
Wrong Spelling:  trespa-s-er  Correct Spelling:  trespa-ss-er 
Explore spell check of Trespasser to spell without errors.