Coferdam or Cofferdam: How To spell?
The word Coferdam is misspelled against Cofferdam, a noun meaning "A water-tight inclosure, as of piles packed with clay, from which the water is pumped to expose the bottom (of a river, etc.) and permit the laying of foundations, building of piers, etc."
Cofferdam has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Co & erdam which should not be misspelled with single 'F'
Wrong Spelling: Co-f-erdam Correct Spelling: Co-ff-erdam
Find more incorrect spellings of Cofferdam to spell right way.