the.com/occupancy

means The number or percentage of rooms, seats, or spaces actually in use at a given time, versus how many sit empty.

from From Latin occupare, 'to seize or take possession of' — built from ob- ('toward') plus capere ('to take, to grab'). The same capere gives you 'capture' and 'captive.' So occupancy carries, at its root, the image of grabbing hold of a space — a hotel room, a seat, a lease — and claiming it as yours, however briefly.