Interer or Interrer: How To spell?
The word Interer is misspelled against Interrer, a noun meaning "One who inters."
Interrer has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings inte & er which should not be misspelled with single 'R'
Wrong Spelling:  inte-r-er  Correct Spelling:  inte-rr-er 
Explore spell check of Interrer to spell without errors.