Hi jgkiefer, welcome to TG.

I know nowt about printing but your question interested me enough to do a Google search. This is the best video I could find on this subject.

LINK

It explains what these terms mean but at the same time wouldn't be the best way of doing it in XD16. As Gary suggests the Contour tool is the way to go to achieve the same result, and don't try doing it via strokes/outlines/line-widths as in this video.

Get back if you need more advise.