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

Since the quasi-unveiling, Musk has briefly answered some direct questions from the curious space-watchers of cyberspace via Twitter. Ryan D'agostino, Popular Mechanics, "Elon Musk: Why I'm Building the Starship out of Stainless Steel," 22 Jan. 2019 These platforms are critical parts of American cyberspace in desperate need of protection and oversight. Erin Kelly, USA TODAY, "Russia may have Facebook users' data mined by Cambridge Analytica, whistleblower says," 16 May 2018 The Marine Corps is opening jobs this October in its new cyberspace occupational field. Washington Post, "Marine Corps weighs wooing older members for new cyber force," 9 June 2018 When cyberspace was closed down, the sedition was stopped. Jon Gambrell, The Seattle Times, "‘Halal’ internet means more control in Iran after unrest," 28 Jan. 2018 Even as the internet transformed the analog world that Barlow called meatspace, cyberspace would remain a virtual domain of its own, growing at least as big as the world that spawned it, and definitely stranger. Jesse Jarnow, WIRED, "The Ghost of John Perry Barlow Lives in His Posthumous Memoir," 5 June 2018 Thus the choice is not whether people will decide how cyberspace regulates. Aaron Pressman, Fortune, "Deciding Whether To Fear or Celebrate Google's Mind-Blowing AI Demo," 10 May 2018 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

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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Last Updated

28 Jan 2019

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Time Traveler for cyberspace

The first known use of cyberspace was in 1982

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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

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More from Merriam-Webster on cyberspace

Rhyming Dictionary: Words that rhyme with cyberspace

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

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).


grandiloquent, ostentatious, or bombastic

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