cyberspace

noun

cy·​ber·​space ˈsī-bər-ˌspās 

: 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

Although not a household name like the CIA or FBI, the NSA is a vast and extremely high-tech spying agency that specializes in gathering signals intelligence – more commonly known as electronic eavesdropping - around the world, in space and more recently in cyberspace. —Josh Meyer, USA Today, 4 Apr. 2025

Governments, corporations and law enforcement must act decisively — closing legal loopholes, enforcing stronger regulations and fostering global cooperation — or risk ceding control of cyberspace to an unregulated shadow industry. —Emil Sayegh, Forbes, 11 Mar. 2025

Before the call, Trump had already surrendered to Russia in cyberspace, dismantled levers of soft power like USAID and shut down war crimes investigations, Giles told Newsweek. —Josh Hammer, Newsweek, 19 Mar. 2025

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

Word History

First Known Use

1982, in the meaning defined above

Rhymes for cyberspace

• aerospace
• anatase
• anyplace
• commonplace
• database
• diabase
• diastase
• dnase
• elastase
• fireplace
• hyperspace
• interface

Kids Definition

cyberspace

noun

cy·​ber·​space ˈsī-bər-ˌspās 

: the online world of computer networks