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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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.