a local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet; uses ethernet protocol
"The new router provides reliable wifi connectivity throughout the apartment, allowing devices to access the internet via its standard ethernet-based protocol."
Alternative spelling of Wi-Fi
"The technician confirmed that the alternative form of wifi was working correctly on all devices."
Alternative form of Wi-Fi
In plain English: Wifi is the wireless technology that lets your devices connect to the internet without using cables.
"I cannot connect to my laptop because the wifi is down again."
Alternative form of Wi-Fi
"The term wifi is often used as an alternative spelling to refer to the wireless networking technology known as Wi-Fi."