Yeah, there's lots of phrases that can be unexpected when you first run into them - so I can get how you'd find it confusing. I don't just mean 'rich countries

Yeah, there's lots of phrases that can be unexpected when you first run into them - so I can get how you'd find it confusing. I don't just mean 'rich countries'/'poor countries.' First, because that is not necessarily as simply true anymore - the economic relations are much more complicated. Second, that is a value judgement about how countries ought to develop. You can read up more about it https://en.wikipedia.org/wiki/Global_South https://en.wikipedia.org/wiki/Global_South