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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

The budget airline said Tuesday that it planned to start offering Starlink Wi-Fi early next year.

From The Wall Street Journal Jul. 14, 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

They met when he spotted her stretching just outside of the Dakota Countryside Inn, where she and Grandpa Ed decided to stay for a real bed and Wi-Fi and a free breakfast.

From "A Heart in a Body in the World" by Deb Caletti

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