Wi-Fi

[wahy-fahy]

Computers, Trademark.

a brand name certifying that a device or other product is compatible with a set of broadband wireless networking standards.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for wi-fi

Contemporary Examples of wi-fi

That could include private financial or personal information—like the credit-card numbers you used to pay for the corrupted Wi-Fi.
How ‘Ethical’ Hotel Chain Marriott Gouges Guests in the Name of Wi-Fi Security
Kyle Chayka
December 31, 2014
And in either case, “the significant benefit from allowing Wi-Fi hotspots outweighs these concerns.”
How ‘Ethical’ Hotel Chain Marriott Gouges Guests in the Name of Wi-Fi Security
Kyle Chayka
December 31, 2014
And, even in national parks, the hospitality industry is pushing for expanded 4G coverage and Wi-Fi access.
Keep Our Wilderness Off Of Wi-Fi
Michael Schulson
September 3, 2014
Well someone gave that kid a banjo and a Wi-Fi connection and told him to go to town.
Michael Cera’s ‘true that’ Review: So Melancholy, So Cool, So Damn Long
Amy Zimmerman
August 13, 2014
More hotels—and even cruise lines—will join the 21st century and offer free Wi-Fi.
14 Travel Predictions for 2014
Condé Nast Traveler
December 28, 2013

British Dictionary definitions for wi-fi

Wi-Fi

noun

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

Word Origin for Wi-Fi

C20: from wi (reless) fi (delity)

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

Word Origin and History for wi-fi

1999, apparentlly from wireless; the second element perhaps suggested by hi-fi.