Ofing or Offing: How To spell?
The word Ofing is misspelled against Offing, a noun meaning "That part of the sea at a good distance from the shore, or where there is deep water and no need of a pilot; also, distance from the shore; as, the ship had ten miles offing; we saw a ship in the offing."
Offing has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings O & ing which should not be misspelled with single 'F'
Wrong Spelling:  O-f-ing  Correct Spelling:  O-ff-ing 
Find more wrongly spelled words of Offing to spell it well.