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.

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Wi-Fi British  

/ ˈwaɪˌfaɪ /

noun

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

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Etymology

Origin of Wi-Fi

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

Example Sentences

See Examples For:

Wi-Fi

In a statement, DfT said journeys on the new fleet would be "quieter, smoother and more reliable", while offering "improved accessibility, more luggage space and onboard Wi-Fi".

From BBC ● Sep. 10, 2026

Using VPNs, proxies, corporate networks, university Wi-Fi and public networks can increase how often someone sees a captcha, says Yang Xiang, a professor at Swinburne University of Technology in Melbourne, Australia.

From The Wall Street Journal ● Sep. 8, 2026

"I wouldn't have survived in this city if I didn't have the ability to sit, use Wi-Fi, and grab a coffee and feel like a part of society," he said.

From BBC ● Aug. 22, 2026

Not inoperable Wi-Fi like on my United flight, just no option at all.

From The Wall Street Journal ● Aug. 19, 2026

“We got the whole thing on video. I wish I could email it to my friends at the FBI, but the Wi-Fi down here is terrible. Cell service, too. There is none.”

From "The Smartest Kid in the Universe" by Chris Grabenstein