What's return value really mean? Why return value called return value and how it works?

Answer 1

The return type of a function tells what kind of value a function is supposed to return to the point from where it is called.

However, if you use 'void' as the return type of a function, it doesn't need to return anything.

It just performs the work written through the code, and returns the control back to point from where it was called.

▪return x; causes the current function to return to the caller, evaluating to x. It is required except in functions returning void, in which case return; returns without a value. 

Answer 2

The return statement terminates the execution of a function and returns control to the calling function.
Execution resumes in the calling function at the point immediately following the call.
A return statement can also return a value to the calling function

So it called return dramatically because of it's grammatical meaning , it means to stop where you are and turn back your way from where you came from and in our case we will come back to "the calling function"

and as I said sometimes we don't turn back our way with empty hands , we can come back with a value

so it may seem funny the metaphor but that what "return"really do

Answer 3

In most programming languages, the return statement is either return or return value, where value is a variable or other information coming back from the subroutine

Answer 4

return simply means to get the output of a function, you return a value back to were that function was called.