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What does 'Wi-Fi' stand for?
'Wireless fidelity' is a popular myth. The Wi-Fi Alliance coined the name for marketing.
The Wi-Fi Alliance began in 1999 as the Wireless Ethernet Compatibility Alliance, a trade group formed to certify that products built to the IEEE 802.11 standard would work together. The technical name was unwieldy, so the group hired a branding firm, Interbrand, which proposed 'Wi-Fi'. The pun on 'hi-fi' was deliberate: it sounded familiar and easy to say. Its founding members included firms such as Nokia and Symbol Technologies, according to commonly cited accounts.
The IEEE approved the first 802.11 standard in 1997. It builds on rules opened up in 1985, when the US Federal Communications Commission allowed unlicensed use of some radio bands, including 2.4 GHz. That decision let manufacturers sell wireless networking gear without needing station licences, which made consumer products practical.
Early Alliance marketing briefly paired the name with the tagline 'The Standard for Wireless Fidelity', which is how the expansion spread, and it does fit the hi-fi comparison. Accounts such as Britannica's say the name was chosen for its sound and stands for nothing. Another frequent mix-up is treating Wi-Fi as a synonym for the Internet: it is only a local wireless link between a device and a router, which connects to the wider network separately.