What does 'parameter' mean in programming?

In programming, the term 'parameter' refers to a value that is passed into a function when it is called, allowing the function to customize its behavior and perform specific tasks based on that input. Parameters provide a way for different inputs to influence how a function operates, making functions versatile and reusable. For example, if you have a function that calculates the area of a rectangle, you can use parameters to specify the length and width, which the function then uses to perform the calculation. This adaptability is a fundamental concept in programming, allowing for dynamic interaction with functions.

The other options focus on concepts that are not related to the definition of parameters. Fixed values, programming errors, and coding standards do not capture the essence of what a parameter does in the context of function calls.