Overriding in computer programming is a form of polymorphism, which means "can take many forms." In object-oriented terminology, an overridden method or function is one that is redefined in a subclass derived from a superclass.

What it means in practice is that the compiler of a language that supports overriding can distinguish between two or more functions or operators that are both represented by the same name or symbol, and have the same function signature.

In computer programming, a function is a self-contained sequence of code statements that perform a set of actions and return a value of a known type, and an operator is a symbol that represents a specific action. A function's signature is a combination of the function's name; the number, order, and types of its parameters; as well as any qualifiers that can be applied to the function. Operators and functions are implemented in...