Does final imply override?

Question

As I understand it, the override keyword states that a given declaration implements a base virtual method, and the compilation should fail if there is

Answer 1

final does not necessarily imply that the function is overridden. It's perfectly valid (if of somewhat dubious value) to declare a virtual function as final on its first declaration in the inheritance hierarchy.

One reason I can think of to create a virtual and immediately final function is if you want to prevent a derived class from giving the same name & parameters a different meaning.