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[wahy-fahy] /ˈwaɪˌfaɪ/
Computers, Trademark.
a brand name certifying that a device or other product is compatible with a set of broadband wireless networking standards. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for wifi
Contemporary Examples
Historical Examples
  • The overlapping rings of wifi false-colored over the map were nearly total.

  • It was going to take a couple hours for all the data to squeeze through her neighbor's wifi network and wing its way to Sweden.

    Little Brother

    Cory Doctorow
British Dictionary definitions for wifi


(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



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

Online Etymology Dictionary, © 2010 Douglas Harper
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