The word Grafage is misspelled against Graffage, a noun meaning "The scarp of a ditch or moat."
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Graffage has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Gra & age which should not be misspelled with single 'F'
Wrong Spelling:  Gra-f-age 
Correct Spelling:  Gra-ff-age 
Explore spell check of Graffage to spell without errors.