Parmandur
Book-Friend
Pathfinder also defines levels of precision for senses. By default, vision is a precise sense; hearing is an imprecise sense; and everything else is a vague sense. These levels of precision correspond to how well you can sense a creature (precise = observed, imprecise = hidden, vague = undetected). Of course, this can change from creature to creature. For example, scent could be an imprecise sense for dogs or hearing a precise sense for bats.
PF2 is occupying a weird space for me: that seems like an awful lot of detail, while still being fairly abstract. I could pick up a game like HURPS, Rolemaster or HERO that offers Fuller detail, or a less detailed system that exists in a more fluid space. This seems too mixed, neither fish nor fowl.