cy·ber·space | \ˈsī-bər-ˌspās \

Definition of cyberspace 

: the online world of computer networks and especially the Internet

Examples of cyberspace in a Sentence

We send e-mails through cyberspace.

Recent Examples on the Web

The best that could be hoped for would be some broad generalizations about peaceful use of cyberspace, which might be sandwiched in a larger statement about good relations between the two sides. Derek Hawkins, Washington Post, "The Cybersecurity 202: North Korea is even less likely to give up hacking than nukes," 1 June 2018 His statements also circulated cyberspace a day after thousands showed up to the Homestead shelter where hundreds of undocumented children are being housed. Monique O. Madan, miamiherald, "Trump: 'Immediately' deport undocumented immigrants with 'no judges or court cases'," 24 June 2018 Like any frontier, cyberspace needed to be defended against powerful interests pressing in from outside. Chris Jennings, WSJ, "‘Mother American Night’ Review: The Opening of a Western Mind," 14 June 2018 The pair visit cyberspace seeking a replacement part for Sugar Rush. Brian Truitt, USA TODAY, "See exclusive first photos of Taraji P. Henson, Disney princesses in 'Wreck-It Ralph 2'," 30 May 2018 In cyberspace, Berklee Online has launched a master of arts in music business. Thom Duffy, Billboard, "Bonnaroo U? Billboard's 2018 Top Music Business Schools," 29 June 2018 At the time, Saturday’s protest didn’t just cause tempers to flare on the Dan Ryan and arterial roads; battle lines also were drawn in cyberspace as Rauner and Emanuel took to Twitter. Katherine Rosenberg-douglas,, "Father Pfleger waiting for elected officials' response before calling for future protests," 9 July 2018 The women and men of the Department of Homeland Security work together with one shared mission to secure our nation’s homeland and protect Americans from threats by land, sea, air and in cyberspace. Dan Lamothe, Washington Post, "Trump administration plans to use Coast Guard money to pay for border enforcement," 22 June 2018 The massive defense policy bill the Senate approved Monday night calls on Trump to curb Russian aggression in cyberspace. Washington Post,, "Senate defense bill pushes Trump to get tougher on Russian hacking," 19 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cyberspace.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cyberspace

1982, in the meaning defined above

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Statistics for cyberspace

Last Updated

23 Sep 2018

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Time Traveler for cyberspace

The first known use of cyberspace was in 1982

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More Definitions for cyberspace



English Language Learners Definition of cyberspace

: the online world of computer networks and the Internet


cy·ber·space | \ˈsī-bər-ˌspās \

Kids Definition of cyberspace

: the online world of computer networks and especially the Internet

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Comments on cyberspace

What made you want to look up cyberspace? Please tell us where you read or heard it (including the quote, if possible).


evasion of direct action or statement

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