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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.

See Examples For:

"Gamers are willing to trade a little fidelity for convenience, but not to pay premium prices for something they don't own which stutters when the Wi-Fi dips," he said.

From BBC Jul. 23, 2026

I had been expecting to reach her at an improbable desert outpost, like a Death Valley library with Wi-Fi, but instead reached her in Orange County.

From Los Angeles Times Jul. 22, 2026

"We have no Wi-Fi, no electricity, we can't work," said a young software programmer working for a tourism start-up in another neighborhood.

From Barron's Jul. 6, 2026

Flix’s Greyhound purchased 181 new buses over the past two years equipped with more-comfortable seating and better Wi-Fi, and plans to buy 85 more this year.

From The Wall Street Journal Jun. 22, 2026

We start off with this whole debate about whether or not the minibus that takes the mathletes to the big tournament in Denver has Wi-Fi or not.

From "Linked" by Gordon Korman

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