Wi-Fi, short for Wireless Fidelity, is a technology that enables electronic devices to connect to a wireless local area network (LAN) using radio waves. It allows devices such as smartphones, laptops, and tablets to access the internet and communicate with each other wirelessly within a certain range of a Wi-Fi router or hotspot. Wi-Fi has become a ubiquitous and essential feature in the modern world, providing convenient and flexible connectivity in homes, businesses, public spaces, and other environments.