People usually say Wi-Fi is a wireless fidelity, but that is wrong.
The term "Wi-Fi" mean nothing, it was made up to sound catchy.
Wi-Fi Alliance founding member Phil Belanger shared the history of
the term with Boing Boing back
in 2005. Phil said, the reason that everyone hears about ‘Wireless Fidelity’ is
some of my colleagues in the team were afraid. They did not understand branding
or marketing. They could not imagine using the name ‘Wi-Fi’ without having some
sort of literal explanation. So, we compromised and agreed to include the tag
line ‘The Standard for Wireless Fidelity’ along with the name. This was a
mistake and only served to confuse people and dilute the brand.