Networking – Difference between indoor and outdoor WiFi Access Points

Access Point is just a bridge between wired and wireless networks. It only operates in 1st and 2nd layer. It doesn't perform any 3rd-layer operations (routing, NAT-ing, IP filtering...)

Any device capable of behaving like a wireless client can be called a station. Connecting to other AP's, Routers etc. You don't really hear the term being thrown around a lot. in your case its referring to the devices ability to bridge a wireless network by acting like a standard client.

While a repeater just extends the signal, a bridge extends the logical network segment regardless of physical topology and if its smart, reduces congestion by building tables and routing data across the bridge only when necessary.