English Lexicon

Wi-Fi

/ˈwaɪ.faɪ/
nounCEFR A2 (Elementary)Top #850 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A facility allowing computers, smartphones, or other devices to connect to the Internet or communicate with one another wirelessly within a particular area.

    "The hotel provides free Wi-Fi in all guest rooms and public areas."
  2. 2

    A local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet.

    "Make sure your laptop is connected to the secure office Wi-Fi before joining the conference call."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Coined in 1999 by the branding firm Interbrand for the Wireless Ethernet Compatibility Alliance (now the Wi-Fi Alliance). The term was created as a catchy, consumer-friendly play on 'hi-fi' (high fidelity), despite having no actual technical etymological relation to fidelity.

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