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 Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for wifi

Contemporary Examples of wifi

Historical Examples of wifi

  • 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


  1. computing a system of accessing the internet from remote machines such as laptop computers that have wireless connections

Word Origin for Wi-Fi

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

Word Origin and History for wifi



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

Online Etymology Dictionary, © 2010 Douglas Harper