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Wi-Fi

[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.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for wifi
  • wifi can be a little tricky and spotty, but it's free and you can work it out with a little patience.
  • For free wifi which an outlet provides, it's technically possible to limit the duration per device.
  • Ideally it's wifi, decent room service menu, good gym and shower.
  • Seems over priced for what amounts to a stick from a mop, a remote control car, a processor and battery-operated wifi webcam.
  • Remember, this was in the days before ubiquitous wifi or smartphones.
  • Three weeks ago, you couldn't live in a permanent wifi cloud.
  • Not only that, with cloud service, it might be faster than desktop on wifi.
  • Purpose the purpose of wifi is to provide wireless access to digital content.
British Dictionary definitions for wifi

Wi-Fi

/ˈwaɪˌfaɪ/
noun
1.
(computing) a system of accessing the internet from remote machines such as laptop computers that have wireless connections
Word Origin
C20: from wi(reless) fi(delity)
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
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Word Origin and History for wifi

wi-fi

n.

1999, apparentlly from wireless; the second element perhaps suggested by hi-fi.

Online Etymology Dictionary, © 2010 Douglas Harper
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