The WPS button stands for Wi-Fi Protected Setup, a feature found on many routers and devices. It allows users to easily connect to a wireless network without needing to enter a password. By pressing the WPS button on the router and the corresponding button on the device, a secure connection is established automatically. This method is particularly useful for connecting devices like printers, cameras, and smart home gadgets to the Wi-Fi network. It simplifies the setup process, making it accessible for those who may not be tech-savvy, while still maintaining a secure connection.