The word for a fake or false appearance is "facade." It often refers to an outward appearance that is maintained to conceal a less pleasant reality. Facades can be used to describe both physical structures and metaphorical situations where things are not what they seem.
The word that means something fake or false is "counterfeit."
False or Fake.
False is a five letter word meaning fake.
false false? bogus?
Another word for fake is "False".
false
false, phony, bogus
Not genuine is false or phony.
false
untrue incorrect fake
False, phony.
false