Wi-Fi, short for “Wireless Fidelity,” is a technology that allows devices to connect to the internet or communicate wirelessly using radio waves. It enables devices like smartphones, laptops, tablets, and other electronics to connect to a local area network (LAN) wirelessly, granting access to the internet or other network resources without needing a physical wired connection. Wi-Fi networks operate using a router or access point that broadcasts a wireless signal, allowing devices within its range to connect and communicate with each other and the internet.