PhD program. I think the tendency here is to describe all other post-graduate programs by their more specific titles (law school, med school, dental school, etc) with exception of Masters and PhDs.Grad school. Right. Which kind is that, for the non-US citizens?
In this case, it's just my ignorance of the higher education opportunities in the US that got me wondering. Oddly enough, we don't study these things in the university, despite my education profile being "English linguistics" (which implies that we get some sort of familiarity with the culture of the English-speaking countries - mainly, England and the US). I feel like we're missing out on what's really important by figuring out what's the difference between public and private schools.