Security and privacy
WPA2
Abbreviation for Wi-Fi Protected Access 2
In short and in plain language
WPA2 is a way to encrypt a Wi-Fi network.
It protects the radio traffic between the router and your devices.
It came before the standard of today. Many routers can run it along with the newer one.
Definition
WPA2 is a method of encrypting a Wi-Fi network and the predecessor of today's standard. It encrypts the radio traffic between the router and the devices. Many routers offer a mixed mode together with the newer successor.