Rifle or Riffle: How To spell?
The word Rifle is misspelled against Riffle, a noun meaning "A trough or sluice having cleats, grooves, or steps across the bottom for holding quicksilver and catching particles of gold when auriferous earth is washed; also, one of the cleats, grooves, or steps in such a trough. Also called ripple."
Riffle has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Ri & le which should not be misspelled with single 'F'
Wrong Spelling:  Ri-f-le  Correct Spelling:  Ri-ff-le 
Find more wrongly spelled words of Riffle to spell it well.