From Chapter 5: Splat! Expanding Collections in Method Calls

We’ve seen that if you prefix the name of a method argument with an asterisk, multiple arguments in the call to the method will be passed as an array. Well, the same thing works in reverse.

I was confused by this paragraph. The previous sections were related to method definitions and their parameters. I believe the first instance of “argument” in the excerpt above is supposed to be referring to a method definition “parameter”. These terms are often used interchangeably to refer to both or either. Since there is an attempt to explicitly distinguish between the two in the same sentence, I think it warrants extra precision here.