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Wi-Fi

American  
[wahy-fahy] / ˈwaɪˌfaɪ /
Computers, Trademark.
  1. a brand name certifying that a device or other product is compatible with a set of broadband wireless networking standards.


Wi-Fi British  
/ ˈwaɪˌfaɪ /

noun

  1. computing a system of accessing the internet from remote machines such as laptop computers that have wireless connections

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Wi-Fi

First recorded in 1995–2000; wi(reless)-fi(delity), patterned after hi-fi

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Those trains are high-speed like the TGVs, only they charge for extras: €3 for Wi-Fi, €5 to choose your own seat.

From Barron's

Digital Products International, a manufacturer and importer of consumer electronics, is telling its manufacturing partners to step up production of projectors, hobby drones with Wi-Fi cameras and other popular products.

From The Wall Street Journal

There’s no alcohol, latte machine, Wi-Fi password or bathroom.

From The Wall Street Journal

“Finally,” I gasped as the router finished booting and my phone connected to the Wi-Fi.

From Literature

By monitoring disturbances in the Wi-Fi networking signal, the system can notify you when someone has entered or exited the home at certain times of day or night, for example.

From The Wall Street Journal