Function: A function is a block of code that performs a specific task and can be reused throughout the program. It may use return statements to send values back to the calling code.
Parameter: A parameter is a variable defined in a function's declaration. It represents an input value that can be passed into the function when it is called.
Void: Void is used as the return type for functions that do not need to send any value back. These functions typically perform actions rather than returning data.