cy·​ber·​space | \ ˈsī-bər-ˌspās How to pronounce cyberspace (audio) \

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 Harris' trip produced just two tangible agreements, expanded US-French space cooperation and a US decision to sign onto the Paris Call for Trust and Security in Cyberspace, a French initiative setting rules of the road in cyberspace. Jeremy Diamond, CNN, 13 Nov. 2021 The Chinese government has been steadily ramping up its control of cyberspace since the passage of the National Security Law in 2015. Jennifer Conrad, Wired, 29 July 2021 More likely is the less drastic, but still dangerous, step of Israeli sabotage of Iranian nuclear and military sites, which will provoke Iranian retaliation, including in cyberspace. Ian Bremmer, Time, 29 Oct. 2021 The journalist opened his laptop and joined a few other participants in cyberspace for a morning of whiteboard sessions led by Callan and Chris Post, a first responder and photojournalist, who runs a Web site called Adam Iscoe, The New Yorker, 25 Oct. 2021 And the issue of whether this is a Cold War, or something quite different, lurks just beneath the escalating tensions over economic strategy, technological competition and military maneuvers — undersea, in space and in cyberspace. New York Times, 17 Oct. 2021 Yet this law doesn’t protect children when they are forced into cyberspace at home by schools and other entities. Anthony Leonardi, National Review, 21 July 2021 The Biden administration has been drawing up lists of possible responses to further Russian hacking, including U.S. incursions into Russian cyberspace, said Mr. Lewis of CSIS. Alan Cullison, WSJ, 17 June 2021 That’s according to a Pew Research Center report that came out in 2015, five years before the pandemic sent teens’ social lives, and so much else, even further into cyberspace. Washington Post, 15 Apr. 2021

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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Time Traveler for cyberspace

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The first known use of cyberspace was in 1982

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Statistics for cyberspace

Last Updated

22 Nov 2021

Cite this Entry

“Cyberspace.” Dictionary, Merriam-Webster, Accessed 29 Nov. 2021.

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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 How to pronounce cyberspace (audio) \

Kids Definition of cyberspace

: the online world of computer networks and especially the Internet

More from Merriam-Webster on cyberspace

Nglish: Translation of cyberspace for Spanish Speakers Encyclopedia article about cyberspace


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