Recall that a function is something like a named block of code that we can easily call again later. Optionally associated with each function is a return statement. A return statement is what a function "gives back" after it is called. The value returned can be assigned to a variable.
Suppose that the function
totalPrice of a
car object calculates the total price for a car and
returns this price. If the total price ends up being $20,000, then the
myPrice variable in the following statement will be
var myPrice = car.totalPrice();
return keyword is not a variable. Remember that it is a keyword that simply spits out what you want it to spit back out.