whats a mild 360

I love reading all the articles on the site and I here a term a lot that I have a hard time quantifying, what is mild? I guess when I think of the term i think cam, intake, carb and headers but does it go deeper than that. Is it a cam under .500 or compression from 9.0 to 9.5.? I guess I am just wonder what the term means to you all so maybe we can better help people with their builds.