welcome to osu!
PP is a short term for performance points. basically, more PP = better rank.
for example, you play a map and you get 20 pp. your current rank is 1.300.000, but if you get 20pp, maybe you'll reach 1.150.000 rank, but please do not farm PP at your rank, you're not ready yet, just play the game for now
the person above me has already explained about 7 digits so I think we don't need to explain anything more about 6 digits or 5 digits
how do I explain this properly 💀