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

The prospectus that it filed as SpaceX prepares for a massive initial public offering makes it clear that colonizing Mars and cracking AI is going to depend on selling Wi-Fi.

From The Wall Street Journal • May 22, 2026

Roberts said it did occasionally "feel like we've gone back in time", although they do have Wi-Fi access, unlike the island's seasonal guests.

From BBC • May 21, 2026

Delta Air Lines selected Amazon Leo for in-flight Wi-Fi, planning a 2028 rollout, opting against SpaceX’s Starlink service.

From Barron's • May 15, 2026

For the consumer, that includes upgrades to 6G networks and to the new Wi-Fi 7 standard.

From MarketWatch • May 15, 2026

Once or twice when their internet was down, Mom had had to go work at the library or Starbucks to have Wi-Fi.

From "The Strangers" by Margaret Peterson Haddix