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.
Over the last week, the Trump administration may have emboldened Russian aggression both on the ground in Ukraine and in cyberspace. Thomas Brewster, Forbes, 4 Mar. 2025 Cyber Command oversees and coordinates the Pentagon’s cybersecurity work and is known as America’s first line of defense in cyberspace. David Klepper, Chicago Tribune, 4 Mar. 2025 But, what is her motive for poking around in the darkest corners of cyberspace? Scott Phillips, Forbes, 4 Jan. 2025 European governments wonder if Trump will continue US support of Ukraine and NATO in a conflict with Russia that has partly played out in cyberspace. Eric Geller, WIRED, 16 Jan. 2025 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

Browse Nearby Words

Cite this Entry

“Cyberspace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cyberspace. Accessed 10 Mar. 2025.

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

Last Updated: - Updated example sentences
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