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

Attribution in cyberspace can take weeks or months, DuBose added. — Nicole Sganga, CBS News, 16 Sep. 2026

In cyberspace, for example, malicious actors are using AI to automate attacks such as phishing and malware distribution. — Gaurav Kapoor, Forbes.com, 8 Sep. 2026

Technology, especially in cyberspace, is rapidly shifting the center point of national security from the public to the private sector. — Gary Corn, Washington Post, 27 Aug. 2026

Nevertheless, the memo presents a dramatic departure from the way America's private sector currently behaves in cyberspace. — Henry Larson, NPR, 15 Aug. 2026

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