"Wi-Fi" is a nickname for "wireless local area network." It is a network that does not necessitate a wired connection to connect to the Internet. Wi-Fi is not an acronym, but rather a play on words that derives from the term "Hi-Fi."
The acronym referring to wireless local area networks is WLAN. Wi-Fi Internet connections are created by the transmission of data through radio waves. Various types of electronic devices are Wi-Fi compatible, including desktop computers, laptops and smartphones. An area where a Wi-Fi connection is available is often referred to as a Wi-Fi "hotspot." An indoor hotspot covers a span of roughly 70 feet.