The term 'Not a Fake' can be represented by three different crossword solutions: REAL (4 letters), ORIGINAL (8 letters), and REALMCCOY (9 letters). REAL is an adjective meaning genuine or authentic, while ORIGINAL is an adjective meaning first or earliest. REALMCCOY is an idiom derived from the name of a 19th century American businessman, Elijah McCoy, who was known for producing reliable products. The phrase 'the REAL McCoy' has come to mean something that is genuine and not a fake.