Naming follows infrastructure. Rail gave us station names that became neighbourhood names; ride-hail gave us verbs. eVTOL is at the point in that cycle where the physical layer exists and the vocabulary is still being claimed.
The vocabulary is already settled
Operators, regulators and press converged on two words with no serious competitors: eVTOL for the aircraft, and vertiport for the place it lands. Osaka Metro named its Chuo Pier facility the OSAKAKO Vertiport, borrowing the nearest metro station's name — proof that the category term is stable enough to combine with a place and read instantly.
Geography is the scarce half
Category words are global; the launch market is not. Osaka is where Japan put its demonstration flights, its Expo showcase and its first city-operator vertiport tender. A restricted city TLD like .osaka makes that geographic claim structurally scarce in a way a generic extension cannot.
What that means in practice
An exact-match, one-word, hyphen-free address is typeable at a station gate in any language and still dominates queries like "osaka evtol" or "nearest vertihub". The window for acquiring it closes when the network becomes routine — which, on the current buildout schedule, is soon.
Context: Airports International — Osaka Metro unveils OSAKAKO vertiport.