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

Meanwhile, your phone continuously senses and records your communications, info about your health, what apps you’re using, and tracks your location via cell towers, GPS satellites and Wi-Fi and Bluetooth.

From Salon • Apr. 23, 2026

He added that the company is well-positioned in the battle for convergence, referring to the integration of 5G, fiberoptic broadband, and Wi-Fi into a single network.

From Barron's • Apr. 21, 2026

Amazon plans to have a space-based Wi-Fi service that by the end of the decade—if all goes to plan—will have more than 3,000 satellites offering data services to Amazon Web Services clients and others.

From Barron's • Apr. 14, 2026

As a result, it consumes much less energy per bit of transmitted data compared to conventional Wi-Fi systems.

From Science Daily • Apr. 2, 2026

Why didn’t she strand them someplace with no Wi-Fi?

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