: of, relating to, or involving computers or computer networks (such as the Internet)
the cyber marketplace

cyber-

2 of 2

combining form

: computer : computer network
cyberspace

Examples of cyber in a Sentence

Recent Examples on the Web
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Adjective
Instead, security focus centers on tracking nuclear fuel and securing reactor management systems against both physical and cyber threats. New Atlas, 4 Sep. 2026 The cyber ransomware reporting requirement is a good example. Keegan Crage, Forbes.com, 4 Sep. 2026 Cheng Xin | Getty Images Zscaler stock soared on Thursday after the cloud security company beat Wall Street’s fiscal fourth-quarter estimates as rising artificial intelligence risk spurred urgent demand for cyber tools. Samantha Subin, CNBC, 3 Sep. 2026 Its work includes regulatory pathway development, cyber architecture and engineering, operational readiness and authorization planning. Aamir Khollam, Interesting Engineering, 1 Sep. 2026 See All Example Sentences for cyber

Word History

Etymology

Adjective

cyber-

Combining form

cybernetic

First Known Use

Adjective

1992, in the meaning defined above

Time Traveler
The first known use of cyber was in 1992

Browse Nearby Words

Cite this Entry

“Cyber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cyber. Accessed 13 Sep. 2026.

Kids Definition

cyber

1 of 2 adjective
: relating to computers or computer networks

cyber-

2 of 2 combining form
: computer : computer network
cyberspace
Etymology

Combining form

cybernetic

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