wi-fi
noun [ U ]
INTERNET, IT (also Wi-Fi) uk/ˈwaɪfaɪ/ usabbreviation for wireless fidelity: a system used for connecting computers and other electronic equipment to the internet without using wires:
Built-in wi-fi now comes as a standard feature.
The coffee shop now offers free wi-fi.
All the cameras on the street are wi-fi enabled.
wi-fi access/connection/network This model allows you to connect to a Wi-Fi network in just a couple of clicks.
wi-fi signal/technology/service More and more cities are offering free wi-fi service.
a wi-fi hotspot/zone
a wi-fi device/equipment/phone