cyberspace

noun

cy·​ber·​space ˈsī-bər-ˌspās How to pronounce cyberspace (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Party directives call for greater Chinese influence over rules governing the oceans, polar regions, cyberspace, outer space, nuclear safety, anticorruption efforts, climate change, and international finance. — Mark Jia, Foreign Affairs, 7 Aug. 2026 There's no boosting your skill set IRL when cyberspace limits your refresh rate, or lag drags you to last place. — Kelsey Fogarty, PC Magazine, 7 July 2026 The men who signed that document could not have imagined artificial intelligence, quantum computing or cyberspace. — Emil Sayegh, Forbes.com, 4 July 2026 After four years at DARPA and more than a decade in cyberspace and hacking, Roelker was ready for a reset. — Eric Berger, ArsTechnica, 22 June 2026 See All Example Sentences for cyberspace

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of cyberspace was in 1982

Rhymes for cyberspace

See All Rhymes for cyberspace

Browse Nearby Words

cybersex
cyberspace
cyberspeak
See all Nearby Words

Cite this Entry

“Cyberspace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cyberspace. Accessed 12 Aug. 2026.

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Kids Definition

cyberspace

noun
cy·​ber·​space ˈsī-bər-ˌspās How to pronounce cyberspace (audio)
: the online world of computer networks

More from Merriam-Webster on cyberspace

Nglish: Translation of cyberspace for Spanish Speakers

Britannica.com: Encyclopedia article about cyberspace

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